CN104272728A - Video projector system - Google Patents

Video projector system Download PDF

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Publication number
CN104272728A
CN104272728A CN201380019798.8A CN201380019798A CN104272728A CN 104272728 A CN104272728 A CN 104272728A CN 201380019798 A CN201380019798 A CN 201380019798A CN 104272728 A CN104272728 A CN 104272728A
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China
Prior art keywords
light
video
pixel
modulation
modulated
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CN201380019798.8A
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Chinese (zh)
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CN104272728B (en
Inventor
埃德蒙·桑德伯格
詹姆士·H·詹纳德
斯图亚特·J·英格利施
格雷戈里·艾伦·普赖尔
赖安·纽汉
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RED COM公司
Red com LLC
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Red com LLC
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141—Constructional details thereof
    • H04N9/315—Modulator illumination systems
    • H04N9/3164—Modulator illumination systems using multiple light sources
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/10—Scanning systems
    • G02B26/12—Scanning systems using multifaceted mirrors
    • G02B26/123—Multibeam scanners, e.g. using multiple light sources or beam splitters
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/48—Laser speckle optics
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
    • G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
    • G02B30/22—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type
    • G02B30/25—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type using polarisation techniques
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0005—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being of the fibre type
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/04—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings formed by bundles of fibres
    • G02B6/06—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings formed by bundles of fibres the relative position of the fibres being the same at both ends, e.g. for transporting images
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/005—Projectors using an electronic spatial light modulator but not peculiar thereto
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/206—Control of light source other than position or intensity
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B33/00—Colour photography, other than mere exposure or projection of a colour film
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/324—Colour aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/363—Image reproducers using image projection screens
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3102—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators
    • H04N9/3105—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators for displaying all colours simultaneously, e.g. by using two or more electronic spatial light modulators
    • H04N9/3108—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators for displaying all colours simultaneously, e.g. by using two or more electronic spatial light modulators by using a single electronic spatial light modulator
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3102—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators
    • H04N9/3111—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators for displaying the colours sequentially, e.g. by using sequentially activated light sources
    • H04N9/3117—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators for displaying the colours sequentially, e.g. by using sequentially activated light sources by using a sequential colour filter producing two or more colours simultaneously, e.g. by creating scrolling colour bands
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141—Constructional details thereof
    • H04N9/3144—Cooling systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141—Constructional details thereof
    • H04N9/315—Modulator illumination systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141—Constructional details thereof
    • H04N9/315—Modulator illumination systems
    • H04N9/3155—Modulator illumination systems for controlling the light source
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141—Constructional details thereof
    • H04N9/315—Modulator illumination systems
    • H04N9/3161—Modulator illumination systems using laser light sources
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141—Constructional details thereof
    • H04N9/315—Modulator illumination systems
    • H04N9/3167—Modulator illumination systems for polarizing the light beam
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3179—Video signal processing therefor
    • H04N9/3188—Scale or resolution adjustment
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/005—Optical devices external to the laser cavity, specially adapted for lasers, e.g. for homogenisation of the beam or for manipulating laser pulses, e.g. pulse shaping

Abstract

Some embodiments provide for a modular video projector system having a light engine module and an optical engine module. The light engine module can provide narrow-band laser light to the optical engine module which modulates the laser light according to video signals received from a video processing engine. Some embodiments provide for an optical engine module having a sub-pixel generator configured to display video or images at a resolution of at least four times greater than a resolution of modulating elements within the optical engine module. Systems and methods for reducing speckle are presented in conjunction with the modular video projector system.

Description

Video projectors's system
The cross reference of related application
The application require under 35U.S.C. § 119 (e) on April 13rd, 2012 submit to, title is the 61/624th of " laser video projector system (Laser Video Projector System) " the, No. 167 U.S. Provisional Applications, in on October 30th, 2012 submit to, title is the 61/720th of " laser video projector system (Laser Video Projector System) " the, No. 295 U.S. Provisional Applications, in on March 13rd, 2013 submit to, title is the 61/780th of " video projectors's system (Video Projector System) " the, No. 958 U.S. Provisional Applications and on April 5th, 2013 submit to, title is the 61/809th of " video projectors's system (Video Projector System) " the, the priority of No. 268 U.S. Provisional Applications.By reference the U.S. Provisional Patent Application related in this section is incorporated to herein.
Technical field
The present invention relates generally to optical projection system, such as modular laser video projection system.
Background technology
Projector system is for projection video or image on screen or other universal display surfaces.Projector system can use lamp as light source, such as xenon lamp or mercury vapor lamp, or uses light-emitting diode (" LED ") as light source, or uses laser as light source.Some projection systems project system adjustable systems import light into produce image or video.Modulation panel can be used to realize the modulation of light, such as liquid crystal display (" LCD ") panel, digital micro-mirror device (" DMD ") or liquid crystal over silicon (" LCoS ") panel.Projector system can comprise be configured to improve the video that projects or image color, quality, brightness, the optical module of contrast and acutance, electronic building brick and mechanical component.
Summary of the invention
Each aspect with innovation in system of the present disclosure, method and apparatus, wherein, does not have independent one to be indispensable or the attribute of responsible expectation disclosed herein alone in system, method and apparatus.Below the feature favourable to some when not limiting the scope of claim is summarized.
Video projectors described herein system has many favourable configurations, to provide a series of function.Video projectors's system comprises photo engine, and photo engine is configured to produce the light with multi-wavelength, and this light can carry out modulating producing for being projected on viewing screen, relatively clear and lively video and image.Video projectors's system comprises video processor, and video processor is configured to provide the vision signal be projected on viewing screen.Video projectors's system comprises light engine, and light engine is configured to receive light and the light modulated according to the vision signal from video processor from photo engine.
Eachly in these systems can be combined into single unit, maybe can add in single unit by any sub-portfolio, wherein, other system is self independent unit.Such as, laser light engine and light engine can be combined in form a unit in single housing, and can use processing system for video with by cable or radio communication for photo engine and light engine provide vision signal.This just allows to use a series of video input without the need to changing video projectors (the laser light engine such as, combined in this example and light engine) when.As described in another example, video processor and light engine can be combined into single unit, and laser light engine can be modular system, to make the configurable laser light engine modules of usage quantity to adjust light output from light engine and video processing unit.As described in another example, three systems all can be combined in single unit, thus complete and self-contained video projectors system is provided.In some embodiments, spare system and/or function is provided by the adapter of laser light engine, light engine and/or video processor or module.
Provide modular video projector system in some embodiments, this modular video projector system comprises one or more photo engine module, one or more video processing module and one or more optical engine module.The modularization aspect of this video projectors's system allows the dynamic-configuration of photo engine, video processor and/or light engine.
Photo engine module can comprise and is configured to multiple laser diode or other lasing light emitters that optical engine module provides light.Photo engine module can be configured to combine its light output, to be sent to optical engine module.In some embodiments, photo engine module comprises the cooling system being devoted to keep preference temperature in each photo engine module.
Video processing module can read video or view data from storage medium, or alternatively from another source (such as computer, game console or other video frequency players (such as, blue light player, DVD player etc.)) receiver, video or view data or receive by the video of Internet Transmission or view data.Video data can be sent to optical engine module by video processing module, to modulate the light received from photo engine module.
Optical engine module can be configured by optical fiber (such as multimode fiber) cable and receives light from photo engine module or other light source.Optical engine module can integrate received light, to produce the region of roughly uniform, the substantially rectangular light of density, and makes the optical scanning of integration cross light-modulation panel (such as LCoS panel, other spatial light modulators of DMD, LCD).In some embodiments, the light from photo engine module is separated into color component.Optical engine module can utilize optical element to add the optical path of the color from photo engine module, and makes the inswept modulation panel of light.Modulation panel is according to the light of the vision signal modulation received from video processing module, and light engine exports light and concentrated on screen by light.The more than modulation panel of optical engine module, to make to increase light output, can improve resolution and/or can show relief video.
Some embodiments, provides optical engine module, and this optical engine module is configured to improve the resolution of wherein included modulation panel.Optical engine module can comprise sub-pixel generator, sub-pixel generator comprises such as multi lens array, to reduce the size from each pixel of modulation panel, then the pixel that size reduces is reflected, with in the quick continuous moving pixel of different configurations, thus produce resolution and export higher than the display video of the resolution of modulation panel.In some embodiments, modulation panel changes its direction to move pixel under various configurations.By continuous in diverse location display pixel fast, the resolution improved can be realized.Such as, by being that each pixel shows 1920x1080 pixels at 4 diverse locations with 240Hz, the effective resolution that valid frame speed is the 3840x2160 of 60Hz or more pixel can be realized.In some embodiments, optical engine module comprises two modulation panel, and these two modulation panel produce the pixel data offset each other, is effectively doubled to make the resolution along a direction.
Video projectors's system can comprise multiple feature, and this multiple feature is configured to reduce the appearance of speckle or changes and cause hot spot and blackening by the constructive of the coherent light from coherent source and destruction interference at least in part.Such as, photo engine can being configured with the spectral bandwidth by increasing source laser device, providing in multiple generating laser with different wave length slightly and/or the signal injection reflector modulated by RF and improving Wavelength Grouping with the emission spectrum expanding light.Reduce speckle by other means, such as, by by light fiberoptic connection to the physical orientation of light engine angle diversity, lasing light emitter, optical modulator and one or more multi lens array; The phase angle diversity provided by the multiple internal reflection by the multimode fiber of optical module and the light of time dependent phase shift; And by polarization diversity that the machinery of lasing light emitter rotates.In some embodiments, substantially all speckles reduce and all carry out in projector.In some embodiments, one or more speckles reducing display screen place of these speckle reduction techniques quilts are adopted.
Some embodiments, provides laser light engine, laser light engine combines to be had roughly the same centre wavelength and has the multiple lasers slightly changing to introduce Wavelength Grouping, to form the virtual laser source of the single color output being provided for transferring to light engine.Can be each extension to repeat and revise this to be configured to produce desired or suitable color output.This multiple laser can carry out orientation and combination, to make obtained virtual laser source provide relatively high level light, reduces the existence of speckle in the image obtained simultaneously.Multiple laser can be configured always introduce angle diversity and polarization diversity by their relative physical sets.Multiple laser can be configured to broadening of the emission spectrum of multiple lasers that experience edge is caused by the RF modulation signal injected.Multiple laser can be chosen as irrelevant to reduce speckle each other.
Some embodiments, provides modular video projector system, and this modular video projector system comprises photo engine module, video processing module and optical engine module, and wherein, photo engine module comprises at least one light source.Photo engine module, video processing module and optical engine module comprise separate modular, and in the configuration of at least one assembling, these separate modular are connected to each other directly or indirectly by cable.In the configuration of at least one assembling, optical engine module is configured to receive the video data provided by video processing module, the light provided by photo engine module is provided, based on the light that the video data modulation provided by video processing module is provided by photo engine module, and the light of projection modulation.
In some embodiments, photo engine module provides laser.In some embodiments, light source comprises multiple laser.
In some embodiments, modular video projector system also comprises the second photo engine module being connected to video projectors's system of assembling by cable directly or indirectly.In another aspect, the first photo engine module and the second photo engine module provide laser.
In some embodiments, optical engine module is also configured to the light received from photo engine module based on the video data modulation provided by video processing module, reduce receive the size of pixel, and the pixel that the size in output bounds pixel reduces is moved at least two positions, wherein, with the speed being at least the twice of the frame rate of video data, the pixel that size reduces is moved at least two positions.
In some embodiments, the light provided by photo engine module comprises at least three kinds of colors, and wherein, the surface that light engine is configured to cross at least one modulation element is the independent band of often kind of color scanning in three kinds of colors.On the other hand, between band, there is substantially unglazed gap.In another, light engine comprises the rotation refracting element performing scanning.
Some embodiments, provides the laser projector system comprising photo engine module, and this photo engine module comprises the multiple lasers being configured to provide the light of multiple color.Laser projector system comprises Video Output Modules, and this Video Output Modules is configured to the light receiving multiple color on a fiber-optic cable, and uses at least two LCoS modulation panel to modulate received light, thus provides the output video of projection.
Some execution modes provide the projector system comprising processing system for video, and this processing system for video is configured to produce the modulation signal corresponding with incoming video signal.Projector system comprises projector output module, and this projector output module is configured to receive modulation signal, and modulation from the light of multiple light source to produce output display.Projector output module is configured to produce the output with the effective resolution being about twice for incoming video signal.
Some execution modes provide the projector system drawing together processing system for video, and this processing system for video is configured to produce the modulation signal corresponding with the incoming video signal with original resolution.Projector system comprises projector output module, and this projector output module is configured to receive modulation signal, and produces the output video at least about twice that output resolution ratio is original resolution.
In some embodiments, the frame rate of input video is about 30Hz, and the frame rate of output video is at least about 60Hz.In some embodiments, original resolution is at least about 1080 vertical row, and output resolution ratio is at least about 4320 vertical row.
Some execution modes provide the projector system comprising integrator, and this integrator receives and launches light in the band being roughly rectangle.Projector system comprises at least one modulation element, and modulation element comprises pel array, and is configured to light modulated, thus produces the pel array of modulation.Projector system comprises sub-pixel generator, and this sub-pixel generator comprises multiple optical element and moveable refracting element.Multiple optical element is configured to the pel array receiving modulation, and reduces the size of the pixel of each modulation in array.Refracting element is configured to the pixel that mobile size reduces.The combination of sub-pixel generator and modulation element creates the output video carrying out projecting.
In some embodiments, the resolution of the output video of projection is at least about the twice of the resolution of modulation element.In some embodiments, the resolution of the output video of projection is at least about 4 times of the resolution of modulation element.
Some execution modes provide the projector system comprising integrator, and this integrator receives and launches light in the band being roughly rectangle, wherein, are roughly the width of the band of rectangle along first direction, and its height shorter than width in a second direction.Projector system comprises scanning system, and this scanning system to be configured to relative to rectangular band along second direction scanning from the light of integrator.Projector system comprises polarized systems, and this polarized systems is configured to receive the light from scanning system, and the light that polarization receives.Projector system comprises at least two modulation elements, these at least two modulation elements are configured to the light receiving polarization, and the light of modulating polarization, wherein, first modulation element modulation has the light of the first polarization, and the second modulation element modulation has the light of the second orthogonal polarization.Projector system comprises optical system, this optical system be configured to combination the light from the modulation of the first modulation element and the light from the modulation of the second modulation element to provide relief video frequency output.
Some execution modes provide the method for using sub-pixel generator to improve the resolution of projector system.The method comprises the light receiving modulation, and light is modulated according to source video.The method comprises and guides on lens arra by the light of modulation, and wherein, the pixel of each modulation is directed to the lens of lens arra.The method comprises the size using lens to reduce the pixel received.The method comprise use refracting element in extremely rapid succession by limitary output pixel, size reduce pixel move at least two positions.The pixel that size reduces is moved at least two positions by the speed being about twice with the frame rate being at least source video.
Some execution modes provide the video projectors's system comprising light source, video processing engine and optical path, and wherein, video processing engine is configured to provide the digital of digital video data with first resolution and the first frame rate.Optical path is configured to receive the digital of digital video data from processing system for video, and receive the light produced by light source, and use modulation element to modulate the light received, wherein, the light of modulation comprises multiple pixel.The single pixel that the optical path pixel be also configured to by reducing modulation is of a size of the pixel of modulation produces the sub-pixel modulated, and sub-pixel is moved at least two diverse locations.The sub-pixel of modulation projects as output video by each position that optical path is also configured at least two positions.
In some embodiments, sub-pixel moves in the region that the size of the pixel by modulation limits.In some embodiments, sub-pixel moves according to predetermined geometrical pattern.In some embodiments, these at least two positions comprise at least 4 different positions.
In some embodiments, light source provides laser.In some embodiments, light source provides the light produced by multiple light-emitting diode.
In some embodiments, optical path comprises at least one modulation element being configured to modulate the light received from photo engine module.On the other hand, this at least one modulation element comprises liquid crystal over silicon (LCoS) plate.On the other hand, optical path comprises at least two modulation elements.In another, the skew that the light from the projection of the first modulation element carries out spatially from the light of the projection from the second modulation element.
In some embodiments, optical path comprises microlens array, and microlens array is configured to receive the pixel of modulation and the sub-pixel of generation modulation.In some embodiments, optical path comprises moveable refracting element, and this moveable refracting element is configured to the sub-pixel receiving modulation, and the sub-pixel of mobile modulation.
In some embodiments, the level of significance resolution of output video is at least about 3840 horizontal pixels.In some embodiments, the level of significance resolution of output video is at least about 4000 horizontal pixels.
In some embodiments, the sub-pixel carrying out the modulation projected produces the output video carrying out projecting, the effective resolution of this output video be the original resolution of modulation element at least about twice, wherein, modulation element is configured to modulate the light received from photo engine module.On the other hand, effective resolution is that the original resolution of modulation element is at least about 4 times.
Some execution modes provide the video projectors's system comprising light source, video processing engine and optical path, wherein, video processing engine is configured to provide the digital of digital video data had, optical path is configured to receive the digital of digital video data from processing system for video, and receives the light produced by light source.Optical path comprises at least two modulation elements, and these at least two modulation elements are configured to modulate based on received digital of digital video data the light received, and the light of modulation comprises multiple pixel.Optical path also comprises optics, and this optics is configured to reflect and carries out by least two modulation elements the light modulated, and and exports the light of the modulation for being projected to display surface.Optical path is also configured, and spatially offsets with the light making the light carrying out the projection of modulating by the first modulation element at least two modulation elements carry out the projection of modulating with respect to the second modulation element at least two modulation elements.
In some embodiments, the effective resolution of the light of projection is that at least twice is high for the original resolution of single modulation element.
Some execution modes provide video projectors, this video projectors comprises light source, video processing engine and optical path, wherein, light source provides the light of at least two kinds of colors, video processing engine is configured to provide the digital of digital video data with source resolution and source frame rate, optical path is configured to receive the digital of digital video data from video processing engine, and receives the light produced by light source.Optical path comprises modulation element, and this modulation element is configured to modulate incident light thereon.Optical path comprises scanning system, this scanning system is configured to be scanned modulation element by the light of at least two kinds of colors, and described scanning is carried out as follows: often kind of color is all incident in a part for the modulation element different from any other color at concrete time point.
In some embodiments, light source provides the light of at least three kinds of colors.On the other hand, scanning system comprises a set of scanning element, and this cover scanning element comprises the independent scanning element of the light of often kind of color in the light for three kinds of colors, and each scanning element is configured to mobile to guide the light of respective color to cross over modulation element.Scanning element is set to relative to each other have angular deflection, and this angular deflection makes that the light that distributes from each scanning element is that be projected to modulation element at concrete time point, different from the part that the light distributed from other scanning elements projects part.On the other hand, eachly in scanning element comprise rotating element, wherein, the rotation of rotating element makes the light distributed from rotating element scan modulation element.On the other hand, rotating element comprises hexagonal refracting element.In some embodiments, at concrete time point place, scanning system penetrates the first band of modulation element with the illumination of the first color, penetrates the second band of modulation element, and penetrate the 3rd band of modulation element with the illumination of the 3rd color with the illumination of the second color.On the other hand, at concrete time point place, the part between band that scanning system does not irradiate modulation element, that irradiate.
In some embodiments, scanning system is configured between irradiated region, provide substantially unglazed gap on modulation element.
In some embodiments, light source comprises multiple laser.In some embodiments, light source comprises multiple light-emitting diode.
Some execution modes provide video projectors, this video projectors comprises optical path, this optical path is configured to receive digital of digital video data from video processing engine, and receive the light produced by light source, wherein, video processing engine is configured to provide digital of digital video data, and light source provides the light of at least two kinds of colors.Optical path comprises modulation element and scanning system, wherein, modulation element is configured to modulate incident light thereon, scanning system is configured to make the whole modulation element of the optical scanning of at least two kinds of colors, and described scanning is carried out as follows: often kind of color is all incident in a part for the modulation element different from any other color at concrete time point.
In some embodiments, light source provides the light of at least three kinds of colors.On the other hand, scanning system comprises a set of scanning element, and this cover scanning element comprises the independent scanning element of the light of often kind of color in the light for three kinds of colors, and each scanning element is configured to mobile to guide the light of respective color to cross modulation element.Scanning element is arranged with angular deflection relative to each other, and this angular deflection makes the light distributed from each scanning element be projected to the part projecting different modulation elements from the light distributed from other scanning elements at concrete time point.On the other hand, eachly in scanning element comprise rotating element, wherein, the rotation of rotating element makes the whole modulation element of optical scanning distributed from rotating element.On the other hand, rotating element comprises hexagonal refracting element.On the other hand, at concrete time point place, scanning system penetrates the first band of modulation element with the illumination of the first color, penetrates the second band of modulation element, and penetrate the 3rd band of modulation element with the illumination of the 3rd color with the illumination of the second color.On the other hand, at concrete time point place, scanning system does not illustrate the part of the modulation element between irradiated band.In some embodiments, scanning system is configured between shown region, provide substantially unglazed gap on modulation element.
In some embodiments, light source comprises multiple laser.In some embodiments, light source comprises multiple light-emitting diode.
In some embodiments, video projectors comprises light source.In some embodiments, video projectors comprises video processing engine.
Some embodiments, provides the method for light modulated in video projectors's system.The method comprises the light receiving at least two kinds of colors from light source.The method comprises from video processing engine reception digital of digital video data, and this digital of digital video data has source resolution and source frame rate.The method comprises the light received from light source is guided to modulation element along optical path.The method comprises the light being modulated at incidence on modulation element according to received digital of digital video data.The method comprises makes the whole modulation element of the optical scanning of at least two kinds of colors, and described scanning is carried out as follows: often kind of color is all incident in the different piece of modulation element at concrete time point.
In some embodiments, at concrete time point place, between often kind of color incident on modulation element, there is substantially unglazed gap.
In some embodiments, scan light comprises use rotation refracting element refract light.On the other hand, rotate refracting element and comprise hexagonal refracting element.
In some embodiments, the method also comprises and guiding from the light of the first polarization of often kind of color along optical path, and guides the light from the second cross-polarization of often kind of color along the second optical path.On the other hand, the method also comprises use second modulation element and modulates the light guided along the second optical path, and wherein, the light with the second cross-polarization is incident on the second modulation element.On the other hand, the method comprises whole second modulation element of optical scanning made in one way from the second optical path, and in this approach, at concrete time point place, often kind of color is all incident in the different piece of the second modulation element.On the other hand, the method comprises the light combined from the light of the modulation of optical path and the modulation from the second optical path, and is projected on display screen by the light of the modulation of combination.On the other hand, the light of the modulation of combination is formed with relief image on the display screen.
Some embodiments, provides the modular video projector system comprising photo engine module and optical engine module, and wherein, photo engine module comprises at least one light source, and optical engine module is contained in the independent encapsulation different from photo engine module.Optical engine module is configured to receive the video data provided by Video processing electronic equipment, the light provided by photo engine module is provided, based on the light that the video data modulation provided by Video processing electronic equipment is provided by photo engine module, and the light of projection modulation.
In some embodiments, photo engine module provides laser.On the other hand, optical engine module and photo engine module link together via at least one optical cable.
In some embodiments, modularization projector system also at least comprises the second photo engine module being connected to optical engine module.In some embodiments, optical engine module be configured to simultaneously with nearly three independently photo engine module cooperate.In some embodiments, optical engine module be configured to simultaneously with nearly 4 independently photo engine module cooperate.In some embodiments, optical engine module be configured to simultaneously with nearly at least 5 independently photo engine module cooperate.In some embodiments, optical engine module is configured to cooperate with the independently photo engine module between with 5 alternatively simultaneously.
In some embodiments, optical engine module is also configured to receive the light provided by the second photo engine module, based on the light that the video data modulation provided by Video processing electronic equipment is provided by photo engine module, and the light of projection modulation.On the other hand, the first photo engine module and the second photo engine module provide laser.On the other hand, the first photo engine module and the second photo engine module are connected to optical engine module via at least one optical cable.In some embodiments, light source comprises multiple laser.
In some embodiments, optical engine module is also configured to modulate based on the video data provided by Video processing electronic equipment the light received from photo engine module, reduce receive the size of pixel, and the pixel that the size in output bounds pixel reduces is moved at least two positions, wherein, with the speed being at least the twice of the frame rate of source video, the pixel that size reduces is moved at least two positions.On the other hand, with the speed of 4 times that are at least the frame rate of source video, the pixel that size reduces is moved at least 4 positions.
In some embodiments, the light provided by photo engine module comprises at least three kinds of colors, and light engine is configured to the independent band of often kind of color scanning in three kinds of colors on the whole surface of at least one modulation element.On the other hand, between band, there is substantially unglazed gap.On the other hand, light engine comprises the rotation refracting element performing scanning.
In some embodiments, modular video projector system also comprises video processing module, and this video processing module comprises Video processing electronic equipment, and has the independently encapsulation different from least optical engine module.On the other hand, video processing module has the independently encapsulation all different from both optical engine module and photo engine module.
Some embodiments, provides laser projector system, this laser projector system comprises photo engine module and Video Output Modules, wherein, photo engine module comprises the multiple lasers being configured to provide the light of multiple color, Video Output Modules is configured to the light receiving multiple color on a fiber-optic cable, and use at least one optical modulation element to modulate the light received, to provide the output video carrying out projecting.Such as, at least one optical modulation element can be LCoS modulation panel.
In some embodiments, Video Output Modules uses at least two optical modulation elements (such as, LCoS modulation panel) to modulate received light, thus provides the output video carrying out projecting.
Some execution modes provide the projector system comprising processing system for video, and this processing system for video is configured to produce the modulation signal corresponding with incoming video signal.Projector system comprises projector output module, and this projector output module is configured to receive modulation signal, and uses at least one optical modulation element with original pixels resolution to produce the output video carrying out projecting.Effective output resolution ratio of output video be the original pixels resolution of optical modulation element at least about twice.
In some embodiments, effective output resolution ratio be original pixels resolution at least about 4 times.In some embodiments, the frame rate of incoming video signal is about 30Hz, and the frame rate of output video is at least about 60Hz.In some embodiments, original resolution is at least about 1080 vertical row, and output resolution ratio is at least about 4320 vertical row.
Some execution modes provide video projectors's system, and this video projectors's system comprises optical path, and this optical path is configured to receive digital of digital video data from video processing engine, and receives the light from light source.Optical path is configured to use modulation element to modulate the light received according to received digital of digital video data, and the light of modulation comprises multiple pixel.For the pixel of each modulation, the optical path size of pixel be configured to by reducing modulation produces the sub-pixel of modulation, and mover pixel in geometrical pattern in the region that the size of the pixel by modulation limits.
In some embodiments, this pattern carries out repetition with sub-pixel frequency.On the other hand, sub-pixel frequency is greater than the frame rate of digital of digital video data.
In some embodiments, optical path comprises multiple optical element, and the plurality of optical element is configured to the size of the pixel reducing modulation.On the other hand, the plurality of optical element comprises microlens array.
In some embodiments, optical path comprises refracting element, and refracting element is configured to mover pixel in geometrical pattern.
In some embodiments, light source provides laser.In some embodiments, light source provides the light produced by multiple light-emitting diode.
In some embodiments, modulation element comprises LCoS panel.In some embodiments, optical path comprises at least two modulation panel.On the other hand, from the light of first modulation panel projection have from from the polarization that the light projected is different of second in modulation panel.
In some embodiments, the horizontal resolution of the digital of digital video data received is at least about 3840 horizontal pixels.
In some embodiments, wherein, the sub-pixel carrying out the modulation projected produces the output video carrying out projecting, wherein, the effective resolution carrying out the output video projected is that the original resolution of modulation element is at least about twice, wherein, modulation element is configured to modulate the light received from photo engine module.On the other hand, effective resolution is that the original resolution of modulation element is at least about 4 times.
Some execution modes provide video projectors's system, and this video projectors's system comprises optical path, and this optical path is configured to receive digital of digital video data from video processing engine, and receives the light from light source.Optical path comprises modulation element, and modulation element is configured to according to the received digital of digital video data modulation incident light received thereon, and modulation element comprises multiple pixel, and the plurality of pixel is configured to the pixel providing multiple modulation.Optical path comprises sub-pixel generator, and sub-pixel generator comprises optical element, and this optical element is configured to the pixel of each modulation in the pixel of mobile multiple modulation in geometrical pattern.
In some embodiments, the optical element of sub-pixel generator comprises moveable refracting element.In some embodiments, sub-pixel generator also comprises multiple lens, and the plurality of lens are configured to reduce the size of the pixel of each modulation in the pixel of multiple modulation.On the other hand, the size of geometrical pattern is limited by the size of the pixel of modulation.In some embodiments, sub-pixel generator also comprises the mechanical organ being configured to mobile optical element.
In some embodiments, video projectors's system also comprises light source.On the other hand, light source provides the light from multiple laser.On the other hand, light source provides the light from multiple LED.
In some embodiments, video projectors's system also comprises scanning system, and scanning system is configured to make the whole modulation element of optical scanning from light source.In some embodiments, video projectors's system also comprises projector lens, and projector lens are configured to the pixel of modulation to project as output video.
Some execution modes provide the method for using video projectors's system display of video streams.The method comprises from video processing engine reception digital of digital video data.The method comprises from light source reception light.The method comprises use modulation element and modulates received light according to received digital of digital video data.The light of modulation comprises multiple pixel.For the pixel of each modulation, the method comprise by reduce modulation pixel size produce modulation sub-pixel and by modulation pixel size limit region in geometrical pattern mover pixel.
In some embodiments, the size reducing the pixel of modulation comprises use microlens array to produce the image of the pixel of modulation, and wherein, the size of the pixel of modulation is at least about 2 with the ratio of the size of the sub-pixel of modulation.In some embodiments, the method also comprises and being projected as output video by the sub-pixel of modulation.
In some embodiments, mover pixel comprises mobile refracting element, moves in geometrical pattern to make the sub-pixel modulated.On the other hand, mobile refracting element comprises use mechanical organ to adjust the orientation of refracting element.On the other hand, multiple loud speakers that mechanically moving element comprises to being attached to refracting element send the signal of telecommunication, to make the electroacoustic component action in loud speaker with a part for mobile refracting element joining with it.
In some embodiments, geometrical pattern carries out repetition with pattern frequency.On the other hand, pattern frequency is greater than the frame rate of digital of digital video data.
Some execution modes provide the video projectors comprising modulation element, this modulation element is configured to modulate incident light thereon in response to the signal deriving from digital of digital video data, light produced by light source and with at least there is the first light of the first color and to have the second light of the second color corresponding.Video projectors is included in optical path the scanning means before being positioned at modulation element.Scanning means comprises the first optical element, and the first optical element is configured to the first band of guiding first light by whole modulation element at least partially.Scanning means comprises the second optical element, second optical element is configured to the part of the second band by whole modulation element for guiding second light, wherein, along with the first band and the second Tape movement pass a part for modulation element, the first band and the second band keep substantially separating.
In some embodiments, the first optical element and the second optical element move, thus the part through modulation element is with by first band and second of guiding light.On the other hand, the geometric profile of the first optical element is substantially similar to the geometric profile of the second optical element.On the other hand, the first optical element and the second optical element relative to each other offset rotatably, and rotate simultaneously, thus guide the first band of light and the second band to cross over the part of modulation element.
Accompanying drawing explanation
There is provided following view so that example embodiment described herein to be described, and be not intended to limit the scope of the invention.In the accompanying drawings, label can be reused to show the general corresponding relation between reference element.
Figure 1A shows the block diagram of the modular video projector system according to some execution modes.
Figure 1B shows the example embodiment of the modular video projector system with video processing module, multiple photo engine module and optical engine module.
Fig. 2 shows and add-on module is added into modular video projector system to cover the example of larger display screen.
Fig. 3 shows the block diagram of the example light engine for video projectors according to some execution modes, and wherein, this example light engine can be used as optical engine module in modularization projector system.
Fig. 4 shows the example of the slit-scanning system in video projectors's system.
Fig. 5 shows the revolving part combined with the microlens array of scanning light source in vertical direction.
Fig. 6 shows the execution mode of the revolving part system combined with microlens array, and this revolving part system has a revolving part for each light source in red, green and blue-light source.
Fig. 7 shows the exemplary slot scanning system making redness, green and the whole modulation panel of blue-light source vertical scanning.
Fig. 8 A shows four-way polarizer according to some execution modes and double modulation panel.
Fig. 8 B shows the example arrangement of the pixel produced by two LCoS panels, and wherein, the respective pixel from two LCoS panels is aligned.
Fig. 8 C shows the example arrangement of the pixel produced by two LCoS panels, and wherein, the respective pixel from two LCoS panels offsets.
Fig. 9 shows the illustrative functions of the deformable mirror in video projectors's system.
Figure 10 A-10C shows some execution modes of sub-pixel generator.
Figure 10 D-10E shows the example of the removable refracting element of the sub-pixel generator for video projectors's system.
Figure 10 F shows some examples of video projectors's system sub-pixel irradiation pattern.
Figure 10 G-10I shows the example using microlens array and moveable light-modulation panel creating subpixel.
Figure 10 J-10M shows each view of the example rocker (wobbler) for the sub-pixel generator of video projectors's system.
Figure 10 N shows the exploded view of the rocker shown in Figure 10 J-10M.
Figure 11 A and 11B shows the schematic diagram of some execution modes of the photo engine module in laser projector system.
Figure 12 shows for combining light from the identical multiple LED of color to increase the chart of the example system of the power of photo engine.
Figure 13 LED shown as multiple color adopts the chart of the exemplary optical engine of the LED combination system in Figure 12.
Figure 14 shows the chart producing and have the exemplary optical engine of relief output, and wherein, photo engine adopts the LED combination system in multiple Figure 12.
Figure 15 shows the chart of exemplary optical engine, and wherein, this exemplary optical engine comprises and uses dichronic mirror to be incorporated into multiple LED of LCoS panel, polarizing beam splitter and polarization grating-polarization conversion system.
Figure 16 shows the exemplary optical engine modules for using together with video projectors system.
Figure 17 A-17D shows each exemplary optical comprising multiple laser diode.
Figure 18 A-18C shows the example pcb board and radiator that use together with the laser diode light source shown in Figure 17 A-17D.
Figure 19 shows the exemplary electron plate for video processor.
Embodiment
Below put up with some examples and execution mode is described various aspects of the present disclosure, wherein, example and execution mode are intended to illustrate instead of the restriction disclosure.Be not intended to any specific features of execution mode disclosed in implying or characteristic in the disclosure to be absolutely necessary content.Protection range is limited by the claims after this specification, instead of is limited by any embodiment described herein.
Below the color video relating to and showing from projector system and image are described.With reference to red, green and blue light, so that can coloured image be created.Other colors and the video desired by the incompatible creation of color-set and image can be used.The disclosure is equally applicable to these color combination, and the disclosure is not restricted to the particular subset of color, but, for convenience of description, use redness, green and blue in the disclosure in the whole text.In addition, although be described as comprising or utilize LCoS panel by some execution modes, the optical modulator of other types also can be mutually compatible with execution mode described herein.
Conventional projection device system by its all component integration in a box.In such systems, lamp is usually used to provide light for projector.Usual use xenon lamp or mercury vapor lamp.These lamps can the relatively large heat of generation, and result is exactly to use expensive or noisy cooling system.Heat can damage optics or electric component.Commonly known is that xenon lamp can produce infrared radiation, and infrared radiation can increase the heat that lamp distributes further.Commonly known is equally that xenon lamp can produce ultraviolet radiation, and ultraviolet radiation can cause the organic decomposition of material in lens subassembly, and such as dyestuff decomposes.Usually, in this system desirably keep lamp source near the modulation component of projector system, thus collect efficiently and use produced light.
Some projectors described herein use LASER Light Source or LED light source.According to some execution modes, light source can separate physically and/or spatially with optical module in projector, such as, by using optical fiber cable.In some embodiments, select in narrow electromagnetic belt, send radiation laser or LED, thus do not produce potential destructive infrared ray or ultraviolet radiation.In some embodiments, wideband light source can be used.
Some projector system be integrated in by all components in individual unit can be difficult to safeguard and upgrading.Modular system as herein described allows the upgraded module when new technology is available and does not sacrifice the function of other assemblies in projector system.Such as, projector system can be upgraded with technological improvement laser module, and such as, green laser and laser may at some time point poor efficiencys, but may in time and become more efficient, cost efficiency is high and powerful.In addition, module can carry out upgrading or rebuild to develop new development technically.But, for some application, because of for ease of arranging, compactedness or other this type of consideration, individual unit that be provided for projection video, that include all components in can be favourable and desired.
In typical projector system, in order to increase light output, in projector system, with the addition of multiple lamp, these lamps then the heat increased in projector.This solution can cause the more larger power damaging and consume for cooling projector.Such as, when heat in other elements not increasing projector system, modular laser projector system as herein described can be configured to stacking multiple light source and increase and input the light of modulation element.
In some embodiments, laser projector system can use coherent source to come for illuminating modulator, comprises LCoS panel, DMD or LCD plate.When being projected on optically coarse surface by light, coherent source is used to cause speckle.Speckle is visible pseudomorphism in the image of projection, and shows as the hot spot of intensity variable or " sandpaper-like " and to glimmer hot spot.Can speckle be caused before the coherent wave of light, and can disturb constructive and devastatingly, thus on screen, create bright spot and the dim spot of change.Speckle may be the reason reducing image resolution ratio and definition.Therefore, advantageously provide and include height coherent source (such as laser) in and reduce the projector system of speckle occurred in the image of projection.
modularization projector system is summarized
Figure 1A shows the block diagram of the modular video projector system 100 according to some execution modes.Modular video projector system 100 comprises the various modules for providing light, vision signal and light modulation, will the video of display on screen 120 to create.The modular nature of video projectors's system 100 provides various advantage, these advantages include but not limited to be convenient to maintenance, be convenient to the upgrading of assembly or module, increase projector light output, forward compatibility with WeiLai Technology is provided, video shown by improvement or the quality of image, improve resolution, provide relief video, compatibility with various video format is provided, redundancy between projector assembly is provided, from protected data input decryption information, multiple display unit shows the information from single video source, single display unit shows from multiple video source information and reduce speckle etc.
Video projectors's system 100 comprises the one or more video processing modules 105 being configured to provide vision signal.Video processing module 105 by cable 107 for optical engine module 115 provides signal, but video processing module 105 and optical engine module 115 also can carry out radio communication.Video processing module 105 changes the information from one or more video source, thinks that optical engine module 115 provides vision signal, thus drives the optical modulation element in optical engine module 115 at least in part.In some embodiments, video processing module 105 is that liquid crystal on silicon (LCoS) plate of optical engine module 115 internal modulation light provides input.
Video processing module 105 can be process or receiving video data (such as, from mass storage device, network source and/or another external video treatment system) and suitable signal be exported to the unit of optical engine module 115.In some embodiments, video processing module 105 comprises input unit with from the external source receiving video signals with Video processing electronic equipment.Such as, external source can be REDRAY tMplayer, computer, DVD player, Blu-ray player, video game machine, smart mobile phone, digital camera, video camera maybe can provide other any sources of vision signal.By regular cable by video data transmission to video processing module 105, comprise, such as, the combination in any of HDMI cable, component cable, composite video cable, coaxial cable, Ethernet cable, optical signalling cable, other vision cables or these cables.In some embodiments, video processing module 105 is configured to read the digital information stored on a computer-readable medium.Module 105 can be configured to read the information on data storage device, comprises hard disk, solid-state drive (SSD), optical disc, flash memory device etc.Such as, can be configured to read digital of digital video data at video processing module 105, digital of digital video data includes but not limited to video (video of such as, DVD encoding, the REDRAY of unpressed video, compression tMthe video that-encoded video and/or Blu-ray Disc are encoded).
External source, optical disc, or data storage device can be video processing module 105 and provides video data, wherein, this video data comprises numeral and/or analog information, and wherein video data comprises the information meeting video standard and/or the video data comprising concrete resolution, such as HD (720P, 1080I, 1080P), REDRAY tM, 2K (such as, 16:9 (2048 × 1152 pixel), 2:1 (2048 × 1024 pixel) etc.), 4K (such as, 4096 × 2540 pixels, 16:9 (4096 × 2304 pixel), 2:1 (4096 × 2048) etc.), 4K RGB, 4K is three-dimensional, 4.5K horizontal resolution, 3K (such as, 16:9 (3072 x1728 pixels), 2:1 (3072x 1536 pixel) etc.), " 5K " (such as, 5120x2700), four-way HD (such as, 3840 × 2160 pixels) 3D HD, 3D 2K, SD (480i, 480p, 540p), NTSC, PAL or other similar standard or level of resolution.As used herein, in the term of expressing with the form of xK (all 2K and 4K described above), quantity " x " refers to approximate horizontal resolution.Like this, " 4K " resolution may correspond at least about 4000 horizontal pixels, and " 2K " may correspond at least about 2000 or more horizontal pixels.The modularized design of video projectors's system 100 can allow video processor module 105 to carry out upgrading and/or upgrading, thus provides New function or different functions.Such as, the pattern of the input that video processing module 105 allows to change video projectors's system 100 can be changed or add.As shown in another example, can to video processing module 105 more newly arrive process from protected data input decryption of video.
Modular video projector system 100 comprises and is configured as one or more photo engine modules 110 that optical engine module 115 provides light.Photo engine module 110 can comprise and being configured to by optical fiber cable 112 as optical engine module 115 provides one or more light sources of illumination.In some embodiments, photo engine module 115 comprises the light in the red area, blue region and/or the green area that are configured to provide and mainly drop on electromagnetic spectrum.In some embodiments, by comprising additional color or the different colours of blue-green, carmetta, yellow, white or some other colors.
Photo engine module 110 can comprise laser diode, and laser diode comprises direct edge emitting laser diode or vertical cavity surface-emitting laser diode.In some embodiments, light source (such as, laser diode) in photo engine module 110 consume in operation be less than or equal to about 8 watts power, be less than or equal to about 10 watts or power, be less than or equal to the power of about 20 watts, be less than or equal to the power of about 25 watts, be less than or equal to power about 40 watts, be less than or equal to the power of about 60 watts, be less than or equal to the power of about 100 watts, power, the power between about 20 watts and about 30 watts or the power between about 6 watts and about 40 watts between about 8 watts and about 25 watts.Single photo engine module 110 can provide the light of multiple wavelength, usually provides red light, green light and blue light from laser diode.By the power of light sources consume can be according to color consume power (such as, above-mentioned scope and display can according to light sources) or the power (power such as, in photo engine all in the above-mentioned restriction of light sources consume and scope) that consumes of the combination of light source.Can be configured according to the size of the expectation of screen by the power of light sources consume.Such as, width is less than or equal to the screen of about 12 feet, about 8 watts or can be less than or equal between about 6 watts and about 10 watts by the power of light sources consume.About 12 feet and/or be less than about 100 feet or at least about 30 feet and/or be less than the screen of about 90 feet are less than or equal to for width, about 25 watts or can be less than or equal between about 10 watts and about 100 watts by the power of light sources consume.
Photo engine module 110 can be carried out stacking with the integral illumination increasing video projectors's system 100 and/or light output.Fig. 2 shows and add-on module is added into modular video projector system 100 to cover the example of larger display screen 120.The screen 120 that it is highly 2H that Fig. 2 shows, length is 2W.In this example, video projectors's system 100 with single photo engine module 110 can be irradiated fully highly for H, width are the screen of W.Adding other three photo engine modules 110 (being so total up to 4) for video projectors's system 100 can provide the light of abundance to irradiate the screen 120 being of a size of 2H x 2W fully.This model easily extensible, to any screen size, to make can add additional optical engine modules to produce enough light, thus irradiates screen 120 well.Like this, adjustable Output optical power carrys out applicable different screen size.In some embodiments, each light source in photo engine module 110 fully can irradiate the screen of at least 5 feet wide.In some embodiments, each light source fully can irradiate the screen of at least 15 feet wide.
Add photo engine module 110 and increase the power consumed by system 100, wherein, the gross power consumed by system 100 is the summation consumed by each individual modules.Such as, photo engine module 110 can consume the power of about 40 watts.Add the power consumption that three additional optical engine modules 110 with similar light sources and cooling system can increase about 120 watts.Like this, the power consumption of video projectors's system 100 can be weighed to adapt to embody rule.
When compared with the light source of such as xenon (Xe) lamp or mercury (Hg) lamp, the photo engine module 110 with LASER Light Source or LED light source provides multiple advantage.Such as, can stacking laser or LED in the module, thus increase the amount exporting light, and wherein, can at least in part by using such as one or more optical fiber cable be guided to efficiently on modulation element by output light.Another advantage is, because LASER Light Source or LED light source produce the heat that level reduces usually, so the modularization projector configuration comprising additional laser photo engine module or LED light engine module can keep acceptable heat levels, thus reduce or prevent the stress that projector assembly causes due to heat from increasing.In addition, modularization projector system can reduce or eliminate the demand for costliness and/or noisy cooling system.
LASER Light Source or LED light source can provide other advantage.Such as, LASER Light Source or LED light source can provide the better control to exporting color in light.Lasing light emitter can provide polarised light, and polarised light advantageously can combine with LCoS panel and other light modulation systems and use.
In some embodiments, photo engine module 110 utilizes laser as light source.As described herein, laser can provide many advantages, but also can cause occur speckle in projected image.Occurring speckle to reduce, multiple technologies can be used to increase Wavelength Grouping, angle diversity, phase angle diversity and polarization diversity, all these all contribute to the coherence reducing lasing light emitter.
By selecting the laser being used for using in photo engine module 110 to realize Wavelength Grouping, wherein, laser has relatively wide spectral bandwidth.This is favourable on minimizing speckle, because Wavelength Grouping decreases the overall coherence of the light arriving at display screen.In some embodiments, direct edge emitting laser diode has the spectral bandwidth of about 3-5 nanometer, when with can the narrow diode pumped solid state to 0.5 nanometer to 1 nanometer (" DPSS ") laser or relatively wide when directly doubling compared with laser technology.For each laser in red laser, green laser and blue laser, the manufacture scope of wavelength available can change in the scope of about 15 nanometers.In some embodiments, producing centre wavelength is the speckle that the light source of the light of about 500 nanometers can reduce about 90% wherein when heart wavelength spread is 10 nanometer.
In projector system 100, the laser that Wavelength Grouping also can have difference (but being difficult to a discover) output wavelength by use realizes.This can reduce the speckle of square root/mono-of the quantity of the different wave length existed for single color in projector 100.This can realize by setting up each laser engine module 110 with the laser diode of the centre wavelength expansion degree with a few nanometer.Such as, if the Wavelength Grouping expected is in blue region, so some blue laser diode can be from about 458 nanometers to about 468 nanometers.As another example, green diode can be from about 513 nanometers to about 525 nanometers.
Wavelength Grouping also can realize with the bandwidth widening output spectrum by injecting one or more lasing light emitter with modulating frequency.In some embodiments, to inject two to three times that spectral bandwidth can be increased original bandwidth by laser diode in a few megahertz to the modulating frequency in hundreds of megahertz range.Such as, green day Asia (Green Nichia) test diode injected with the modulating frequency within the scope of this makes spectral bandwidth increase to about 6 nanometers from the basic spectral bandwidth of about 2 nanometers.Multiple lasing light emitter can receive different modulating frequencies, or receives identical modulating frequency, but with the modulating frequency out-phase in such as other sources.This can cause the overall larger diversity on wavelength.
Phase angle diversity by using multiple emission source to introduce in photo engine module 110.By using several uncorrected and/or incoherent correlated source to make combination high power light engine modules, reduce speckle contrast by introducing phase angle diversity.The minimizing of speckle can reach square root/mono-of the quantity of incoherent laser diode.Exemplarily, 10 watts of RGB modules can use about 4 blue laser diode, 6 red diode and 50 green diode (wherein, green light is usually maximum to speckle contrast contribution), due to the reduction of the coherence of multiple light source, these diodes can reduce the appearance of speckle.
In projector system 100, by use be used for single source, be arranged on multiple reflectors in pattern to realize angle diversity.Such as, laser can be arranged in radiation pattern, wherein, the distance between reflector is from about 4 nanometers to about 50 nanometers.With each reflector carry out sighting then carry out focusing to optical fiber cable and by each reflector carry out subtend (subtend) solid angle will when entering optical fiber cable the incoherent wavefront of various establishment.This angle diversity can cause the speckle in the image of final projection to reduce.
Setting up polarization diversity is other method for reducing the speckle in laser projector system 100.Lasing light emitter can send polarised light, even if after passing through optical fiber cable, polarised light also can keep even polarization to a great extent.By using multiple reflector for each photo engine module 110 and can speckle being reduced with the multiple reflector of the pattern setting creating angle of polarization diversity.As described in more detail herein, this can make polarization randomization on the whole optical path of video projectors's system 100, very useful in the system 100 of usage level polarised light and orthogonal polarized light.
Some execution modes of photo engine module 110 can utilize for the multiple methods by providing the virtual laser source by using a large amount of less laser to create to reduce speckle.Such as, about 100 single reflectors can be used, produce light relevant each other.The reflector demonstrating wide spectral bandwidth in the magnitude of about 2 nanometers can be selected.The spectral bandwidth of reflector increases by the signal injection reflector modulated by RF, and spectral bandwidth can increase to and is greater than about 3 nanometers and/or is greater than about 5 nanometers by this.Reflector can be arranged by pattern, and to create the angle diversity be concentrated in multimode fiber, wherein, color separation (separations) reaches 50 nanometers.By relative to each other mechanically revolving expeller introduce polarization diversity, tool vicissitudinous angle of polarization during to make produced light compared with other reflectors.The reflector of the wavelength of tool vicissitudinous (but being difficult to discover) can be used.Therefore, some execution modes provide the virtual laser source of being reduced speckle by Wavelength Grouping, polarization diversity, angle diversity and/or phase angle diversity.
One or more photo engine module 110 can be incorporated to the Modular trial slide plate (sled) being configured to be connected to optical engine module 115.Modular trial slide plate can comprise for making light output be shaped before injection optics engine modules 115 or nursing one's health the integrator of light output, mirror, lens or other optical elements.Modular trial slide plate can comprise and being configured to light from light sources transmit to the optical fiber cable of optical engine module 115.Optical fiber cable can comprise one or more multimode fiber, and a more than optical fiber cable can be used to carry out transmission light.In some embodiments, the multiple multimode fibers for different color each in light source are had.In some embodiments, multiple optical fiber of the input light for each different color are had.Such as, in some projector system 100, in photo engine module 110, the light of often kind of color all can have single 400 nanometer multimode fibers to transmit light to projector, such as, RGB module totally three.As another example, in the projector system 100 that power is higher, have and reach 5 multimode fibers for often kind of color in photo engine module 110, in high power RGB module, be total up to 15.Due to angle diversity, can contribute to reducing speckle at the interval of the output end multimode fiber connected.
As mentioned above, optical fiber cable 112 or other suitable cables 112 can be used the light from photo engine module 110 to be guided to modulation element in optical engine module 115.This feature allows light source and light engine to carry out physics and being separated spatially.This can allow projector head (such as, optical engine module 115) in a room, and light source (such as, photo engine module 110) is then in another room, this may be favourable during interference video performance at the noise caused by the cooling system being connected to light source.In some embodiments, the length of optical fiber cable or other cable can be more than or equal to about 10 feet and/or be less than or equal to about 100 feet, be more than or equal to about 1 meter and/or be less than or equal to about 100 meters or be more than or equal to about 3 meters and/or be less than or equal to about 50 meters.In various embodiments, the length of wiring is between about 1 meter and about 100 meters or between about 1 meter and about 10 meters.
The multimode fiber used in projector system 100 can be configured to the whole speckles existed in minimizing system.Multimode fiber is used for along with light is in the length upstream of cable and then the various paths randomization that makes light take.The repeatedly internal reflection of light in cable produces and exports light, and wherein, the phase angle differences between light is randomized.Randomized phase angle reduces the coherence of light, thus reduces speckle.In addition, multimode fiber can make polarization randomization to introduce the polarization diversity reducing speckle appearance.
Video projectors's system 100 comprises one or more optical engine module 115, and optical engine module 115 is configured to modulate light from photo engine module 110 according to the signal received from video processing module 105.Some execution modes of laser projector system 100 provide multiple optical engine module 115 to export to provide multiple video or image.Such as, two optical engine module 115 can be used to produce two corresponding video flowings, wherein, video flowing has cross-polarization to have produced relief video.As another example, video processing module 105 can be used to drive two or more optical engine module 115 (each optical module 115 has at least one photo engine module 110) to show identical data on screen 120, thus the brightness of image shown on raising screen, such as, for outdoor display, wherein, 4 projector heads (and the laser module be associated) show identical data on screen.As another example, multiple optical engine module 115 can be used to carry out the display resolution video flowing all higher than any single optical engine module 115.This can realize when high-definition video stream to be decomposed into multiple of applicable single optical engine module 115 by video processing module 105.Then, each optical engine module 115 from a part for video processing module 105 receiving video signals, and can show respective part in the restriction configuration of screen 120.As further describing herein, some execution modes of video projectors's system 100 provide single optical engine module 115, this optical engine module 115 can produce video flowing, and the effective resolution of this video flowing is all higher than any single optical modulation element shown herein.
As the description more fully carried out with reference to Fig. 3 herein, optical engine module 115 can comprise multiple element, and these elements are also configured to irradiate one or more light-modulation panel, and are guided on screen 120 by the light of modulation.Optical engine module 115 can comprise combination in any or other suitable optical modules of integrator, lens, mirror, prism, relay lens, telecentric lens, projector lens, rotating prism element, polarizer, color combiner, light-modulation panel, microlens array, removable refracting element or these elements.
Cable 107 and 112 can be and comprises the client cables of restriction third party to the proprietary jockey of the connection of modular system.Restriction third party can protect projector system 100 to avoid being connected the incompatible equipment of the assembly that can damage in projector system 100 by cable with jockey access.In some embodiments, by using the connection of encryption to carry out limiter assembly access projector system 100, wherein, the connection request of encryption is by using the mandate of PIN or other proofs of identification or the means of mandate.Cable and jockey 107,112 can provide the ability by allowing multiple module interconnects to carry out creation module video projectors system 100, thus create unified video projectors's system 100.
Figure 1B shows the example embodiment of modular video projector system with video processing module 105, multiple photo engine module 110 and optical engine module or projector head 115.Video processing module 105 and photo engine module 110 are illustrated and are arranged on frame 125, and wherein, frame 125 is also configured to holding module.Optical engine module 115 be shown as be positioned at frame 125 top on, but optical engine module 115 can be placed in cable 107,112 can get at Anywhere, and optical engine module 115 can in another room different from the frame 125 with module 105,110.Video processing module 105 and photo engine module 110 can be configured to be arranged in such frame 125, are easy to install, configure and the system that can be easy to dismounting, transport and re-assembly to advantageously provide.
Video processing module 105 can be configured to by using one or more cable 107 to provide vision signal for optical engine module 115.Vision signal can be encrypted, to make only optical module 115 can decrypted signal.
In photo engine module 110, each redness, green and blue light can contributed is to light engine 115.Can transmit the red light from each photo engine module 110 with the cable comprising fiber bundle, wherein, fiber bundle has the optical fiber for red light source each in photo engine module 110.Such as, video projectors's system 100 comprises 5 photo engine modules 110, and each have a red light light source.Cable 112 can comprise red light fiber bundle, and red light fiber bundle comprises 5 optical fiber of transmission from the red light of photo engine module each in 5 photo engine modules 110, in photo engine module 115, and the corresponding optical fiber of each red light source.Optical engine module 115 is transferred to by from the blue light of photo engine module 115 and green light by similar fashion.As described in more detail herein, the light from optical fiber can be integrated and combining in optical engine module 115.As shown in the figure, video projectors's system 100 comprises 5 photo engine modules 110.The photo engine module of varying number can be used, comprise such as one, two, three, four or more than five.
As shown in Figure 1B, video projectors's system 100 comprises the separate modular of the light produced for generation of light, generation vision signal and modulation.In some embodiments, one or more in these modules can be combined into individual unit or module.Such as, in video projectors's system 100 can by photo engine and light engine combined.In this embodiment, light source can produce light, and light is modulated by modulation panel subsequently in same housing or structure.Optical fiber cable as above can be used or use optical module (such as lens, prism and/or mirror) to transmit light from light source.As another example, video processor, photo engine and light engine capable of being combined form single integrated video projectors's system 100.Become by block combiner one or more unit can remove some wiring or communication devices from the above description, but function and general structure can remain unchanged substantially.Such as, when comprising these modules in video projectors's system 100 together, can remove or revise the wiring between video processor and light engine and/or the wiring between photo engine and light engine.
example optical engine module
Fig. 3 shows the block diagram of the light engine 115 for video projectors's system 100 according to some execution modes.Such as, the light engine 115 shown in Fig. 3 can be compatible and/or be optical engine module 115 described herein mutually with modularization projector system, such as, relative to Fig. 1-Fig. 2.As mentioned above, optical engine module 115 receives the light from photo engine 110, receive from the vision signal of video processor 105, use the vision signal received to modulate the light received, and by obtained, be used for the video that shows or image projects on screen 120.Light engine 115 can utilize and be suitable for modulating the various assemblies importing the object of light and projected image or video into.There is described herein the example embodiment of light engine 115, this execution mode has the described element be configured in this way, but this only represents example embodiment, there are other execution modes of the different elements configured by different way also in the scope of following discloses.
Light engine 115 receives the light 305 from photo engine 110.As shown in the figure, light can be configured to be positioned at three general wavelength bands of redness, green and the blue portion dropping on visible electromagnetic spectrum respectively.Also other colors and the brightness of combination desired by obtained image and video realization, details and color can be utilized.Light 305 is transferred to light engine 115 by optical fiber or other modes by comprising monomode fiber or multimode fiber.As described herein, due to phase angle diversity and angle diversity, use multimode fiber that speckle can be caused to reduce.
example set is grown up to be a useful person
First the light 305 received be passed to integrator 310.Integrator 310 can be configured to make light 305 even.Integrator 310 also can increase the angle diversity of light 305 to reduce speckle.In some embodiments, integrator 310 is hollow or solid internal reflection photoconductive tube, use multipath reflection by import into light convert the light of uniform rectangular patterns to.Integrator 310 can be used to improve the uniformity of surperficial glazing, such as modulation panel, and mate the depth-width ratio of light source and modulation panel efficiently.
In some embodiments, integrator 310 comprises horizontal homogeneous dispersion bar and two-sided convex lens arra.Two-sided convex lens arra imports light into increase the angle diversity of light source by dispersion in many angles.Such as, two two-sided convex dispersers can be used in the horizontal and vertical directions before and after homogenizer, thus in " fan-shaped " of widening, produce the angle division exporting light, spatially light is integrated in the whole flat field of each modulation element.As a result, light engine can reduce speckle appearance.In some embodiments, integrator 310 comprises the phase shift dish of homogeneous rod and rotation or vibration.By introducing the mobile light by integrator 310 by introducing time dependent phase shift, by average light source effectively each continuous sweep between Time and place coherence and improve speckle and reduce.Integrator 310 also can comprise other optical elements being configured to be uniformly distributed to by the light from light source on localized area.Such as, integrator can comprise mirror, lens and/or refracting element, is designed to flatly and vertically point lighting.Some execution modes provide the independent homogeneous optical element importing light 305 into for often kind of color.
exemplary slot scanning system
Then, the light leaving integrator 310 can be sent to revolving part 315.In some embodiments, from the light of integrator 310 by the rotating element that concentrates on partially or completely in revolving part 315 or in the rotating element concentrating in revolving part 315.Fig. 4 shows the example of slit-scanning system 315 in video projectors's system 100.Revolving part or slit-scanning system 315 comprise the refraction polygonal element 405 of the speed rotation being configured to determine.When light is by rotating element 405, light is refracted, and element be rotated in the upright position or horizontal level that change light when light leaves turntable 315.As shown in Figure 4, according to the rotation of revolving part 405, the light from integrator 310 is scanned from initial position to final position.Some execution modes provide the rotating element 405 importing light into for often kind of color from integrator, as the description more fully carried out with reference to Fig. 6 herein.
In some projector system, the light of different colours is transmitted subsequently in whole (or substantially whole) modulation panel.In the execution mode of some slit scans, use hexagonal screwing turntable 405 to allow the inswept modulation panel of slit of the red light, green light and the blue light that mix with blank or black period or black.Each gap can comprise the subset (such as, 1,2,3,5,10,100,180,200 or more row) of such as one or more adjacent lines.In some embodiments, the quantity of the row covered by slit is a mark of picture altitude, can be such as 1/3rd of about picture altitude, about picture altitude 1/4th, about picture altitude 1/6th, about 1/8th of picture altitude, 1/12nd or some other marks of about picture altitude.Exemplarily, picture altitude is 1080 row, and slit comprises 180 row.Can at least in part based on limiting ratio between mark the stabilization time (settling time) of modulation panel, stabilization time and the velocity correlation that can scan successive frame of modulation panel.Some advantages of the execution mode of slit scan comprise valid frame speed are increased three times or about three times, because in projector system display often kind of color time course once of sequential scanning, red, green and blueness has been shown three times.Another advantage can be and reduce or eliminate aberration compared with the projector system of sequential scanning, and the projector system of sequential scanning can show the appreciable skew of the redness of fast-moving images, green and blue portion.
In some embodiments, revolving part 405 is coated to reduce speckle.Coating on revolving part 405 increases angle diversity by diffused light.Coating on mirror also can be launched pseudomorphism to introduce image by making the edge of the light received from integrator 310.In some embodiments, as shown in Figure 5, before revolving part 405, microlens array 410 is comprised.Microlens array 410 is by dispersed light and will launch light to increase angle diversity on larger angular range, thus reduces speckle.In some embodiments, microlens array 410 is two-sided convex lens, and two-sided convex lens carry out fixed to make lenticule to be orientated the rotation being parallel to revolving part 405.In some embodiments, in the optical path of projector, microlens array can be comprised after revolving part 405, instead of before revolving part 405, comprise microlens array or except comprising microlens array before revolving part 405.
Fig. 5 shows the revolving part 405 combined with the microlens array 410 of scanning light source in vertical direction.First light enter microlens array 410 to introduce angle diversity and to reduce speckle.Then, light is undertaken reflecting with modulation panel (not shown) inswept as slit by hexagon revolving part 405.
Fig. 6 shows the execution mode of the revolving part system 315 combined with microlens array 410, and revolving part system 315 has revolving part 405a for each light source in red, green and blue-light source to revolving part 405c.Revolving part 405a offsets in angle each other to revolving part 405c, reflects with different angles to make each corresponding color.Fig. 7 shows the slit-scanning system 315 scanning the redness, green and the blue-light source 402 that pass perpendicularly through LCoS panel 420.Rotating element 405a offsets in phase place each other to rotating element 405c, and to make to scan redness, green and blue band downwards along LCoS modulation panel, wherein, at any given time, often kind of color is all incident in the different piece of LCoS panel.The brain Fusion of Color of beholder can be caused to the speed that each color scans and experience chromatic spectrum.In addition, the light 407 leaving rotating element is spatially separated, and mean has gap between the band of light, there is no the light from light source at gap location.This gap between the band of light can be enough large, thus provide time enough not have to recover in the incident time course of red light, green light or blue light (such as, resetting or otherwise recover the ability of light modulated effectively) thereon for the element of LCoS panel.The advantage of this configuration can come modulated red coloured light, green light or blue light by a modulation panel, without the need to requiring independent modulation panel for the light of often kind of color.
example color combiner
Referring again to Fig. 3, the light leaving revolving part 315 can be sent to color combiner 320.Color combiner 320 can be configured that the light path of three independent color is combined into single light path 322.In some embodiments, color combiner 320 comprises optical delay compensator and one or more right-angle prism, right-angle prism is configured to the light from different light paths to guide to color combiner cube, wherein, color combiner cube is configured to light to guide on common optical path.In some embodiments, color combiner 320 comprises extra optical element, comprises the element being configured to provide anxious point far away.In some embodiments, the light of combination is advanced along common light path, but still vertically, flatly or diagonally offsets each other.As described herein, the skew between color can be used to make the sequentially scanned modulation panel of light.
example polarising means and modulating device
With reference to Fig. 3, the light 322 leaving the combination of color combiner 320 can be sent to 4 to polarising means and light-modulation panel 325.Fig. 8 A shows four-way polarizer 802 according to some execution modes and two LCoS panel 820a, 820b.Except the light of horizontal polarization, light engine 115 can be configured to the light utilizing vertical polarization.Some projector system do not use this two polarizations, consequently can lose efficiency and luminosity.Therefore, polarising means 325 can handle the light from color combiner 322, all exists to make both vertical polarization and horizontal polarization.In some embodiments, can have in relief application use different polarization or use different polarization improve play image and the brightness of video.In some embodiments, two LCoS panel 820a, 820b can carry out offseting or produce the pixel data that offsets each other each other to strengthen resolution or to make double resolution.
Polarising means and modulating device 325 can comprise the quarter-wave plate 805 of the polarization being configured to rotating light 322.Polarising means and modulating device 325 can comprise broadband light splitting polarising means 810a and 810b.Light splitting polarising means 810a and 810b can be configured to incident beam to be divided into two light beams with different linear polarization.Polarizing beam splitter available orthogonal polarization produces the light of complete polarization or the light of partial polarization.Use polarizing beam splitter to be favourable, the energy of underproof polarization state because polarizing beam splitter substantially can not absorb and/or dissipate, so polarizing beam splitter is more suitable for using together with the light beam of high strength (such as laser).It is very useful when polarizing beam splitter uses two polarization components at the same time.Polarising means and modulating device 325 also can comprise the half-wave polarization rotation device 815 being configured to the polarisation of light direction changing linear polarization.
In some embodiments, polarising means and modulating device 325 comprise two LCoS light-modulation panel 820a, 820b.This just allows optical engine module 115 drive plate equally, and at the light of output hybrid modulation, thus keep and use the cross-polarization of importing light into.As a result, video projectors's system 100 can use the light provided by photo engine 110 efficiently.In some embodiments, in order to have relief use or raising or strengthen resolution, LCoS panel 820a, 820b can carry out different drivings.In some embodiments, LCoS panel 820a, 820b produce the pixel that offsets each other to strengthen resolution.
In some embodiments, two LCoS light-modulation panel 820a, 820b have identical or substantially the same pixel quantity and pixel arrangement.In some embodiments, polarising means and modulating device 325 are configured to the light of combination from the respective pixel of two LCoS light-modulation panel 820a, 820b to form single output pixel.Such as, as shown in Figure 8 B, one LCoS panel 820a (plate " A ") and the 2nd LCoS panel 820b (plate " B ") can have picture element matrix, the quantity of the pixel wherein in two plates is substantially the same with configuration (such as, simple in order to know shown in Fig. 8 B and 8C, each plate has the picture element matrix of 4x6).Polarising means and modulating device 325 may be combined with from the first pixel in LCoS light-modulation panel 820a (such as, pixel A 0,0) light of modulation and from corresponding first pixel in LCoS light-modulation panel 820b (such as, pixel B 0,0) light of modulation forms single pixel (such as, pixel A+B0,0).Polarising means and modulating device 325 can be all pixels in plate and carry out such combination, and such as, by pixel A 0,0 to A5,3 form A+B0,0 to A+B5,3 with corresponding pixel B 0,0 to B5,3 is combined.As described herein, this can be used for such as improving output light intensity or relief use.
In some embodiments, polarising means and modulating device 325 are configured to show the light from the respective pixel as two output pixels of two LCoS light-modulation panel 820a, 820b.As shown in Figure 8 C, polarising means and modulating device 325 can offset from the first pixel in LCoS light-modulation panel 820a (such as horizontally and vertically, pixel A 0,0) light of the light of modulation and the modulation from corresponding first pixel (such as, pixel B 0,0) in LCoS light-modulation panel 820b, thus form level with one another and two output pixels vertically offseting (such as, pixel A 0,0 and B0,0).Polarising means and modulating device 325 can be all pixels and carry out this combination, thus produce output image or the video of double resolution.Such as, double resolution is made by LCoS light-modulation panel 820a is offset half-pixel relative to LCoS light-modulation panel 820b.Fig. 8 C shows this example, and wherein, output image comprises the output image of 48 pixels using each two LCoS panels with 24 pixels to produce.
Light from the modulation of the respective pixel in two LCoS light-modulation panel 820a, 820b flatly, vertically or diagonally can offset when leaving polarising means and modulating device 325.In some embodiments, in order to the light of offset modulation, two LCoS light-modulation panel 820a, 820b can offset physically each other, with make for the respective pixel in two plates, by the optical path level with one another ground of polarising means and modulating device 325, vertically or diagonally offset.In some embodiments, two LCoS light-modulation panel 820a, 820b can be attached to moving meter (such as, actuating device), one or two in the removable LCoS light-modulation panel 820a of this moving meter, 820b makes LCoS light-modulation panel 820a, 820b or alignment or skew.In some embodiments, in order to the light of offset modulation, the combination of the optical element in polarising means and modulating device 325 can be configured to create the optical path for LCoS light-modulation panel 820a, 820b, and this optical path causes level with one another ground, vertically or carry out the respective pixel that offsets diagonally.Optical element in polarising means and modulating device 325 can be configured to mobile or otherwise change attribute, with make from the modulation of the respective pixel in LCoS light-modulation panel 820a, 820b light can or alignment or skew.
Get back to Fig. 3, the light of the modulation from polarising means and modulating device 325 can be sent to heart relay lens 330 far away.Heart relay lens 330 far away can be configured to reverse image and extend optical tube.Telecentric lens 330 can be configured to move with object keep constant from the picture size of polarising means and modulating device 325.Heart relay lens 330 far away can be advantageously used to keep the characteristics of luminescence of the image of the modulation leaving polarising means and modulating device 325.
example deformable mirror
Light from relay lens 330 can be sent to deformable mirror.Deformable mirror 335 can be configured to the lens aberration in calibrating optical engine 115.In some embodiments, the light from relay lens 330 is reflexed to microlens array 340 by deformable mirror 335.When microlens array 340 is when leaving the focus place of light of deformable mirror 335, expecting correcting lens distortion, if corrected, light so can be made to drop between the element of microlens array 340, thus cause moire pattern.
Fig. 9 shows the illustrative functions of deformable mirror 335 in video projectors's system.In some embodiments, as shown in the right part of flg of Fig. 9, noise source is applied to deformable mirror 335, thus makes the change randomization in wavefront incident on deformable mirror 335, or change in wavefront incident on deformable mirror 335.Such as, noise source upsets deformable mirror 335 by the RF signal of modulation, lower frequency signal or some other source or pseudorandom electromagnetism or acoustic signal.Wavefront randomization is made advantageously to increase phase angle diversity and to reduce speckle.
example microlens array and sub-pixel generator
Get back to Fig. 3, then, the light reflected can be incident on comprise in the sub-pixel generator 338 of microlens array 340 and rocker 345 from deformable mirror 335.In some embodiments, microlens array 340 can be configured to the part size of each pixel being decreased to its original size.Such as, microlens array 340 can be configured to the size of pixel to be decreased to its original size 1/4th, its original size 1/2nd, its original size 1/3rd, 1/8th of its original size, 1/16th of its original size or some other marks.Rocker 345 can be configured to mobile, to make to transform in the space corresponding with the movement of rocker 345 and from the corresponding light of the pixel of microlens array 340.
Figure 10 A-10C shows some execution modes of the sub-pixel generator 338 comprising microlens array 340 and rocker 345.Rocker 345 can be have expected light transmission and with the material (such as, transparent glass sheet) of expected mode refract light.Import light into by microlens array 340, and Pixel Dimensions is reduced to a part for its original size.Then, the pixel that size reduces is moved to expected position by rocker 345.Rocker generator 345 can be configured to move in two or three dimensions.Because the angle diversity that increases and time average and spatial coherence are destroyed, so reduce speckle by the combination of these elements.Angle diversity is created when moving to the diverse location on screen in pixel size reduced.Time average and the destruction spatial coherence of contrast come from the pixel repeatedly moving size reduction in the point differentiated.
Figure 10 D-10E shows the execution mode of the sub-pixel generator 338 with the different mechanisms making rocker 345 movement.In figure 10d, rocker 345 is attached to rotating shaft 370 in out of plumb or the plane that parallels to the axis.Because rocker 345 is not oriented orthogonal to rotating shaft, but carry out orientation with some on-right angles relative to rotating shaft on the contrary, so rocker 345 waves (shown in dotted line), and when being incident on rocker 345, light is reflected by with known pattern.In Figure 10 E, rocker 345 has the actuating device 375 being attached to its corner.Actuating device 375 can be configured to move rocker 345 with various pattern, transforms equally to make the pixel to size reduces.Figure 10 F show for be reduced to its original size dimensionally 1/4th the example pattern of pixel.The pixel of size reduction can be moved with square, circular, Fig. 8, unlimited shape or some other shapes.In some embodiments, the pixel that size reduces can be moved to two positions, 4 positions, 8 positions, 16 positions or another number destination locations according to any suitable motion pattern by the rocker 345 of sub-pixel generator 338.As mentioned above, video or the image of the resolution with enhancing can be shown by repeating motion pattern.In some embodiments, the size of the number of position and the pixel of reduction is inversely proportional to.Such as, when pixel being reduced to the half of size of original pixels, the pixel of reduction can be moved to two positions.When pixel is reduced to original pixels size 1/8th, the pixel of reduction can be moved to 8 positions.Therefore, when pixel size reduced moves to the allocation position in the region covered by original pixels, the pixel reduced by size covers the region covered by original pixels substantially.Like this, effective resolution can be improved 2 times, 4 times, 8 times, 16 times, 32 times, 64 times or more.
In some embodiments, light engine 115 can from video processor 105 Received signal strength, and by the interpolation of Pixel Information by the resolution of conversion of resolution Cheng Genggao.In some embodiments, light engine 115 can show the video information received from video processor 105, and the resolution of this video information exceeds the resolution of light engine 115 internal modulation panel.Such as, light engine 115 can take the light of spatial modulation and the light using sub-pixel generator 345 interblock space to modulate to make resolution higher.Such as, can to there is the LCoS imager of 1920x1080 pixel to produce 2D/3D Quad-HD (3840x2160) resolution.Light engine 115 can comprise from video processor 105 receiving video signals and the circuit produced for the modulation signal of modulation panel and process electronic equipment.Such as, 4k video data can be sent to light engine 115 by video processor 105.In the light of light engine modulation, electronic equipment can produce burst by time-division multiplex signal transmission, and this burst is also configured to drive one or two 1k modulation panel to copy the 4k video data received from video processor 105 when the light modulated illustrates continuously.
Configurable sub-pixel generator 338 carrys out the resolution of enhanced modulation panel (such as LCoS panel).Exemplarily, LCoS panel can have 1920 horizontal pixels and is multiplied by 1080 vertical pixels.Microlens array 340 can collect the light from color combiner 320 or other elements, and light is concentrated on substantially the core of each pixel on LCoS panel.Result is exactly the 1920x1080 array of reflective pixel image, and each is 1/4th of the size of LCoS pixel.Then, rocker 345 can be moved in such a way, move left and right 1/4th pixels to make the pixel by size reduces and move up and down 1/4th pixels, result can be the pixel of many 4 1/4th sizes, the pixel filling of these 4 1/4th sizes without microlens array 340 when the full-scale pixel space that can occupy.Then, display 4 sub-pixels just can create the higher video effectively play of resolution continuously fast.Such as, projector system can play the video data (such as, 3840x2160) of the original resolution being at least about input data.In addition, because can with relative velocity refresh LCoS, so LCoS panel can with relatively high speed refresh (such as, about 240 hertz) due to the slit scan method summarized herein at least in part.Therefore, according to some execution modes, light engine 115 can show effective resolution and be 3840x2160 pixel and valid frame speed is the video of about 60 hertz.
In some embodiments, as herein with reference to as described in Fig. 8, LCoS panel can be offset each other, thus effectively make the double resolution of system.In addition, as as described in about Figure 10 A to Figure 10 I, sub-pixel generator 338 can be used for by reduce pixel size (such as, be decreased to 1/4th of original size) and in extremely rapid succession sub-pixel is moved to the resolution that multiple (such as, 4 positions) strengthen skew LCoS panel.In some cases, these technology can combine.As an example, plate offsets, and Pixel Dimensions is reduced to the half of size, and sub-pixel is moved into two positions, thus causes the resolution of 4 times of the original resolution for single LCoS panel.In this example, valid frame speed is the twice of the valid frame speed relative to above-mentioned situation, wherein, LCoS panels in alignment, and for single output frame, the sub-pixel of 1/4th sizes is moved to 4 positions by sub-pixel generator 345.Such as, use the 1920X1080LCoS panel of the vertical shift that can refresh with about 240 hertz (such as, / 2nd of a spacing of offset pixels), the video data that light engine 115 can be 1920x2160 with the valid frame speed display resolution of 240 hertz, and do not use sub-pixel generator 345 and microlens array 340, show once because each pixel of two LCoS panels is each output frame.Light engine 115 is by using the video that sub-pixel generator 345 and microlens array 340 are 3840x2160 with the valid frame speed display resolution of 120 hertz, to reduce the size from the output pixel of LCoS panel, and the output pixel moved horizontally from LCoS panel, to make light engine 115 by each pixel of two LCoS panels for each output frame shows twice to strengthen resolution.
The following describe the exemplary method strengthening resolution, the method uses video projectors's system 100 in light engine 115 with the plate of two angular shift.Video projectors's system 100 can receive or in video processor 105, produce the source signal with first resolution (such as, 7680 × 4320,3840X2160,1920X1080 etc.).Video processor 105 can carry out double sampling to as the signal had for two horizontal and verticals of the second resolution of first resolution half are staggered.As the result of double sampling, video processor 105 can produce two videos or image stream by staggered pixel, similar with the configuration shown in Fig. 8 C.Then, the Signal coding of two double samplings can be two synchronous images streams by video processor 105.Two synchronous images streams can be sent to light engine 115 by video processor 105, light engine 115 has the LCoS panel of two angular shift, wherein, each LCoS panel has the half of 1/4th of the number of pixels of source signal and the number of pixels of institute's sampled signal.Sub-pixel generator 345 is used to determine the size of the output of LCoS panel pixel and the output of mobile LCoS panel pixel, light engine 115 can re-create two staggered images, wherein, each staggered image has the resolution identical with the signal carrying out double sampling.Then, light engine 115 can show synchronous interlaced image with large n-body simulation n original source signal.
In some embodiments, the pixel that mobile size reduces is realized by both mobile modulation panel, microlens array or mobile modulation panel and microlens array.Figure 10 G-10I shows the example embodiment of the microlens array had before light-modulation panel.Microlens array can be used to be placed in before each pixel by lenticule.Lens can be set to and be gathered in light incident on it, and light is concentrated to the core of each pixel.Then, light can reflect from pixel mirror and return lens surface, differentiates the image of pixel by another optical module (such as, projecting lens) at lens surface.Gained imaging pixel can be a part for Pixel Dimensions on plate.Then, this plate can be moved in such a way, with make pixel left, to the right, mobile to form the pixel that many sizes reduce up and/or down, thus fill the space that full-scale pixel can take.
Figure 10 G shows a fraction of cutaway view of LCoS panel, and wherein, microlens array is arranged on side.Illustrate that first plate pixel moves from left to right.By LCoS pixel is liquid crystal, is then cover glass.This cover glass has the micro-lens surface of the right side to cover glass.This microlens array has focal length, to make pixel reflects from the light of illumination optics and to make light imaging in the stock size of lens surface.Figure 10 H has the thickening device of cover glass with another example embodiment of the LCoS panel making cover glass hardening.Figure 10 I shows the example optical path of light, and this optical path starts from the entrance of light, if light beam is the heart far away, so the entrance of this light can cover a pixel, as shown in light dotted line.When light beam has relatively high F/# (such as f/20), throw light on from a Pixel Dimensions of porch and extend to cover glass with the region in pixel mirror surface coverage 9 pixels.It is the heart far away that light is positioned in its each respective pixel by the lenticule of 8 surrounding pixels.Then, this light of pixel mirror surface reflection, and be back to lenticular surface, form 1/4 size Pixels image on lenticular surface.LCoS panel can be configured to move, and moves in the configuration limited to make gained pixel image.Projecting lens can be focused on micro-lens surface, wherein, gained image is projected on screen.By scanning this 1/4th pixel with suitable speed at 4 diverse locations, projector system can show the image having and strengthen resolution.In some embodiments, microlens array is configured to perform f-number conversion.Such as, microlens array can be converted to the f-number (such as, being about the f-number of 4) matched with projecting lens from the f-number being about 17.This is by introducing the speckle in additional angular diversity minimizing system.
Figure 10 J-10M shows each view of the example sub-pixel generator 338 for video projectors's system 100.Figure 10 N shows the exploded view of the sub-pixel generator 338 shown in Figure 10 J-10M.In diagram, the light of modulation enters from the upper right side of accompanying drawing, and exits sub-pixel generator 345 in lower left side.
Sub-pixel generator 338 comprises housing 1005.In housing, sub-pixel generator 338 comprises the plate 1004 being configured to keep microlens array 340.Microlens array receives from LCoS panel the light modulated after being positioned at relay lens, and reduces the size of pixel.Sub-pixel generator 338 comprises loudspeaker panel 1002, and wherein, 4 loud speakers 1002a, 1002b, 1002c, 1002d are positioned in loudspeaker panel 1002.The opposite side portion of loudspeaker panel 1002 is provided with refracting element 345, and wherein, the corner of refracting element 345 is attached to the opposite side of loud speaker 1002a, 1002b, 1002c, 1002d.Refracting element 345 can be any suitable material, and its thickness can at about 3mm and about between 4mm, about 1mm and about between 5mm or about 0.5mm and about between 7mm.Loud speaker 1002a, 1002b, 1002c, 1002d receive the signal of telecommunication making loud speaker vibrate or vibrate.This vibration or vibration move refracting element 345 so that the sub-pixel produced by microlens array 340 is moved to each position with a pattern.
As described in reference to Figure 10 F, the motion of refracting element 345 can be substantially continuous, and can move with the pattern repeated.The frequency of this pattern can with the frequency dependence of revolving part element.In some embodiments, the frequency of the motion of refracting element 345 can independent of the frequency of inputting video data (or frame rate).This can be used for position by changing sub-pixel in pixel continuously to make sub-pixel effectively wash away the bounds between pixel element or effectively to make pixel become not obvious (non-apparent), thus effectively at optics and numerically trap signal.Such as, by removing the optics sideband in shown video, this can have reduce or make to sample to Nyquist (Nyquist) distortion in relevant image or pseudomorphism and be down to minimum, and wherein, the optics sideband in the video shown by removal can reduce or eliminate aliasing.Because the frequency of this pattern and those values have nothing to do, so this result is substantially independent of Pixel Dimensions and/or video frame rate.In some embodiments, the frequency of this pattern and the frequency of rotating scanning device can be configured to minimizing or the flicker occurred in shown video is down to minimum.This result can be can produce to have " class film " quality but the digital projector of output video without film noise.In some embodiments, the frequency of this pattern is repeated by refracting element 345 between about 75 hertz and about 85 hertz, between about 40 hertz and about 120 hertz or between about 30 hertz and about 250 hertz.
Sub-pixel generator 338 comprises compensator motor 1001 and compensator wheel 1003./ 4th wave plates can be comprised with the polarisation of light of adjustment through compensator wheel in compensator wheel.Small electromotor 1001 and wheel 1003 can be used for the third dimension attribute adjusting output video with 1/4th wave plates appended by it.This is used in when using projector 100 and calibrates projector 100 according to arenas, 3D glasses and/or screen.Pixel generator 338 comprises Hall element 1009, and Hall element 1009 is attached to housing to provide feedback on the position of compensator wheel 1003.This can be user and provides the fast axle of 1/4th wave plates about being arranged on compensator wheel 1003 and the information of the associative operation of slow axis.
Sub-pixel generator 338 comprises two compensator motors 1001 and two compensator wheels 1003.In some embodiments, the more compensator motor 1001 of number and compensator wheel 1003 can be used, comprise three, 4 or more.In some embodiments, a compensator motor 1001 and a compensator wheel 1003 can be had.In some embodiments, rocker does not comprise compensator motor 1001 or wheel 1003.Sub-pixel generator 338 comprises various screw and attachment mechanism 1010,1011 and 1012, is respectively used to loudspeaker panel 1006, sensor board 1009 and compensator motor 1001 to be attached to housing 1005.
exemplary projection lens
With reference to Fig. 3, after leaving microlens array 340 and sub-pixel generator 345, light enters projecting lens 350.Projecting lens 350 can be configured to the video produced by optical engine module 115 or image roughly to focus on screen 120.In some embodiments, projecting lens 350 applies for broad-spectrum light.In some embodiments, lens 350 are without coating, because light source provides narrow band light but not broad-spectrum light.
the example schematic diagram of optical engine module
Figure 11 A and 11B shows the schematic diagram of some execution modes of optical engine module in video projectors's system.Figure 11 A shows and is configured to 5 optical fiber of light from light sources transmit to optical engine module 115.In some embodiments, 5 optical fiber can be used to transmit the light of solid color.In some execution modes of the light of use three kinds of colors, 15 optical fiber can be used.The optical fiber of other numbers can be used to carry out transmission light between light source and optical engine module 115.In some embodiments, the light that can be often kind of color uses the cable of seperate color, and wherein, each multi-color cord cable wrap draws together at least one optical fiber, at least two optical fiber, at least three optical fiber, at least 4 optical fiber, at least 5 optical fiber or more optical fiber.In some embodiments, the first optical fiber in colored cable can be used for connecting the light from the first color of the first photo engine module, the second optical fiber in colored cable can be used for connecting the light from the first color of the second photo engine module, the 3rd optical fiber in colored cable can be used for connecting the light from the first color of the 3rd photo engine module, and the rest may be inferred.In some embodiments, when a use photo engine module, the central optical fiber of each colored cable can be used for irradiating homogenizer B efficiently.In some embodiments, when use two photo engine modules, the optical fiber of the either side of central optical fiber can be used in.In some embodiments, when use three photo engine modules, infrared optical fiber and central optical fiber can be used for the optical transport of single color to light engine.Light from optical fiber is transferred in the first homogenizer B.After the first homogenizer B, light enters in the second homogenizer E through two-sided convex lens arra C and planoconvex spotlight D.Then, the piano convex cylindrical lens F carrying out focusing on basically by planoconvex spotlight lens G is used to make to leave the parallel light of the second homogenizer E.The light focused on reflexes to another two-sided convex lens arra K from mirror H and J.Then, light runs into hexagon rotary device L and scioptics M and N is transferred to the color combiner shown in Figure 11 B.
In Figure 11 B, use a series of delay compensator B and prism A to come combinations red coloured light, green light and blue light, to advance along identical optical path to make these light and leave color combiner C (be vertically separated due to the revolving part L in Figure 11 A) simultaneously.Light focuses on part through the heart far away comprising prism D and planoconvex spotlight F.Light enters polarization and modulation element by 1/4th wave plate G, and is divided into into two paths according to polarization.Wideband polarization device M and half-wave polarization plates J was all passed in these two paths before being mapped to left LCoS panel H and right LCoS panel H.Light leaves LCoS panel and carries out at prism K place combining to be passed to heart relay lens N far away.Then, light that is modulated and polarization is passing 1/4th wave plate G through before microlens array P and window R.Then, the light of modulated, polarization and focusing through projecting lens to show.In some embodiments, left LCoS panel and right LCoS panel offset each other, thus effectively make the number of the output pixel of photo engine module double.
there is the photo engine of LED
Video projectors's system described herein can use laser to provide illumination for modulation panel.In some embodiments, in addition to laser, can LED be used, or use LED and non-laser.In order to provide sufficient brightness, hereafter described technology can be used to combine LED, thus increase the output of LED.By combination LED, power output and/or regulation output power adjustments can be increased to produce gratifying video frequency output.The ability etc. of LED-based efficiency, compactedness, large color-gamut, long-life, low supply voltage and quick-make and cut-out at least in part, in some embodiments, LED can make the applicable alternative of laser.But compared with laser or other light sources, some LED provide optical power and the three-dimensional angle of departure (such as, brightness) in lower each unit source.It is contemplated that the output of combining multiple LED provides the advantageous feature with LED simultaneously by the light source of sufficiently high brightness.Therefore, provide the system that can be used in order to the use combination LED in projector system exports, such as, photo engine module described herein.
Figure 12 shows for combining light from the identical two or more LED of color to increase the chart of the example system of the power of photo engine.By using LED combination system, the monochromatic source of incoherent light can be provided.At least in part owing to using coherent source, so compared with lasing light emitter, this can reduce the speckle in gained video frequency output.In addition, LED combination system can be used for the number of the LED of the light changed for providing concrete color, thus changes the brightness of light source.
As shown in Figure 12, use the combination of tapered photoconductive tube (GTLP), lens, polarization grating-polarization conversion system (PG-PCS) and polarization beam apparatus from combination 5 blue leds.The LED of different number can be used, include but not limited to 2,3,4,6,7,8,9,10,20,50,100 etc.Light for creating monochromatic source may be provided in a series of colors in the color belt of reception.Such as, the blue led blue light of blue wavelength that may be provided in average in about 100 nanometers, about 50 nanometers, about 30 nanometers, about 20 nanometers or about 50 nanometers or expect.In addition, the LED combination system of Figure 12 can use together with the LED of any color, comprises redness, green, blue-green, yellow, magenta, white, ultraviolet etc.
The LED combination system of Figure 12 can use GTLP to collect, reshape and/or homogenizing from the luminous flux of LED, thus irradiate the optical module of this system in a substantially even way.LED combination system can also use lens to focus on the light exiting GTLP or the parallel light making to exit GTLP.LED combination system can use PG-PCS parts to carry out polarization LED light effectively.Can expect to use PG-PCS optical module because with the incident light of only polarization about 50% and lose remainder conventional polarization filter compared with, PG-PCS optical module can the incident thereon light of polarization about 90%.In some embodiments, can use by polarized incident light at least about 70%, at least about 75%, at least about 80%, at least about 85% or at least about 90% any polarization optics assembly of polarised light efficiently, instead of use PG-PCS optical module.By using efficient polarization optics assembly, the efficiency of LED light source system can be increased to the level that gratifying result is provided compared with using the other system of conventional polarization technology.In some embodiments, PG-PCS optical module can use the combination of polarization grating, louvered multiply delayer (louvered multi-twist retarder) and microlens array etc. to carry out polarized incident light efficiently.The ImagineOptix company of the North Carolina state provides example PG-PCS optical module, and the Part No. of this PG-PCS optical module is E3PGPCS.
The LED combination system of Figure 12 can use polarization beam apparatus to combine the output from multiple LED, and wherein, each output from multiple LED passes through at least one PG-PCS.Polarization beam apparatus can guide polarised light efficiently along the path expected, thus combination is from the polarised light of PG-PCS optical module.By this way, the light from multiple LED can be combined efficiently, thus substantially monochromatic output is provided.
Figure 13 LED shown as multiple color adopts the chart of the exemplary optical engine of the LED combination system in Figure 12.Such as, blue led, red LED and green LED are each can be associated with the LED combination system of himself, such as, with reference to the LED combination system that Figure 12 is described.Then, in LED combination system capable of being combined, each output provides the polychromatic light that can use in the projector system of modulation to export.As shown in the figure, photo engine module is three kinds of color-redness, often kind of color in green and blueness uses three LED.But, the LED of different number can be used, and often kind of color can have the LED of different number.Such as, if if expect that the brightness that green exports or green LED provides strengthening projector is lower than other LED, so can use the green LED that number is more.In some embodiments, photo engine module can use more colors, such as increases yellow led, White LED etc.
Dichronic mirror can be used to combine output each in LED combination system.Dichronic mirror can be used for the LED of combination to export to guide to another PG-PCS optical module, thus the light that polarization is incident in modulation panel (the LCOS panel such as, shown in Figure 13) efficiently.Then, the light of modulation is directed to the projector lens combination for showing.
Figure 14 shows the chart producing and have the exemplary optical engine of relief output, and wherein, photo engine adopts the LED combination system in multiple Figure 12.In some embodiments, multiple photo engine module capable of being combined provides relief output and/or LED combination system configuration can be become provide the combination LED light with different polarization, thus generation has relief effect.The photo engine module use color combiner cube of Figure 14 combines the output from multiple LED combination system, and wherein, each LED combination system and the LED combination system class shown in Figure 12 are seemingly.Output from a set of " right side " LED can be guided to " right eye " LCOS panel, and the output from a set of " left side " LED can be guided to " left eye " LCOS panel.PG-PCS optical module can be used be configured for the polarization of relief display and viewing.By using color combiner cube and polarization beam apparatus, this configuration can reduce Fresnel loss (Fresnel loss), thus provides and relatively have relief projector system more efficiently.
Figure 15 shows the chart of exemplary optical engine, and wherein, this exemplary optical engine comprises and uses dichronic mirror to be incorporated into multiple LED of LCoS panel, polarizing beam splitter and polarization grating-polarization conversion system.In this exemplary optical engine modules, using before the light of combination to the LED from different colours of PG-PCS optical module and polarization beam apparatus combines, use dichronic mirror combined light.This can be favourable when providing and having color combination that is predetermined or that select (such as, R-G-B, bluish-green-yellow – are pinkish red), and to increase brightness by the number increasing the LED module used in this system be desirable.
Figure 16 shows the exemplary optical engine 110 for using together with video projectors system 100.Photo engine 110 can comprise three light sources corresponding to red light source 1605a, green light source 1605b and blue-light source 1605c.Light source can be laser, LED, laser diode etc.The output of light source can be attached to optical fiber cable, the one or more optical fiber cable of each light source.
Photo engine 110 comprises the coldplate 1610 that heat is attached to light source.Because light source produces heat, so photo engine 110 is configured to make dissipate heat and/or near minor heat take away light source 1605a, 1605b, 1605c.In some embodiments, photo engine 110 comprises cooling system 1620, and cooling system 1620 can comprise active cooling element and passive heat dissipation element.Such as, cooling system 1620 can comprise the compressor for providing cooling in photo engine 110.Cooling system can comprise the design of fansink-type and the liquid that can comprise through cooling element.In some embodiments, cooling device can be used to provide cooling capacity for photo engine 110.
Figure 17 A-17D shows each exemplary optical 1605 comprising multiple laser diode.Light source 1605 can have housing 1705, and housing 1705 has and is configured to fixing laser diodes in the housing and focuses on export light and will export light and guide to multiple structural detail and the optical element of optical fiber cable.Light source 1605 can have and is configured to support laser diode 1725 and provide the mounting panel 1730 of radiator.Lens board 1720 can be positioned on mounting panel 1730 as corresponding to the lens 1715 of laser diode 1725 to provide supporting.Lens 1715 can be configured to the light output from each laser diode 1725 to guide to the reflection cap 1710 be positioned in housing 1705.Reflection cap 1710 can be configured to reflect from the output light of laser diode 1725 and/or the output light from laser diode 1725 is guided to reflecting element 1717, then, guides to (not shown) on optical fiber cable.By this way, the light output from multiple laser diode 1725 can be collected and it can be used as single light source to provide.In some embodiments, the physical orientation of each laser diode 1725 can be set to be reduced by least partly by polarization diversity (such as, can be non-homogeneous and/or randomization by the output polarization configurations from laser diode) and angle diversity is (such as, light from laser diode marches to optical fiber cable with different path, effectively from different angles) speckle that causes.Figure 17 B-17D shows the close-up view of the lens 1715 of light source 1605, mounting panel 1730, laser diode 1725 and lens board 1720.For each light source 1605, the number of laser diode 1725 can be different.In some embodiments, the number of green diode can exceed the number of red laser diode and/or blue laser diode.Such as, Figure 17 D can be the diagram of the green light source with multiple green laser diode 1725.
Figure 18 A-18C shows the example pcb board 1810 and radiator 1815 that use together with the laser diode light source 1605 shown in Figure 17 A-17D.Pcb board 1810 can be configured as the electrical connection being provided to multiple laser diode.The heat conduction that pcb board 1810 can be configured to be provided to radiator connects the electrical connection being simultaneously provided to pcb board 1810.Laser diode can be controlled by the signal sent by connector 1825, and signal is dispensed to laser diode by pcb board 1810 by connector 1825.Radiator 1815 can be configured to pcb board 1810 and provide mechanical support, can be positioned at radiator 1815 to make pcb board 1810.Therefore, laser diode can be electrically coupled to pcb board 1810 and heat is attached to radiator 1815.Radiator 1815 can be configured to larger with the heat produced by laser diode that dissipates.
Figure 19 shows the exemplary electron plate 1900 for video processor 105.Electron plate 1900 comprises the multiple input components 1935 for receiving input from external system.This input component can be any suitable connector, comprises such as HDMI, HD-SDI, DVI etc.Electron plate 1900 comprises the multiple outputs 1940 for video data being sent to light engine or projector head.Electron plate 1900 comprises for encoding, decoding, encrypt and/or decipher the Video Controller of input signal 1905.Electron plate 1900 comprises for generation of one that is suitable for the vision signal being sent to light engine or projector head, two or more video modules 1910,1920.Electron plate 1900 comprises the package module 1925 for also producing the use signal for being sent to light engine by output 1940 from video module 1910,1920 receiving video signals.Electron plate 1900 can comprise data storage 1930.Data storaging unit 1930 can store video files, and this video file processes by video module 1910,1920, and is sent to projector head by package module 1925 and output 1940.
speckle reduces
Video projectors described herein system can comprise the multiple element and/or method that are configured to reduce speckle when using coherent source.In the execution mode of the video projectors's system announced, these elements and/or method can exercise use with any being combined into.In the execution mode of the video projectors's system announced, can be implemented these and reduce the element of speckle and/or any subset of method.As described in more detail herein, video projectors's system reduces speckle by increasing such as Wavelength Grouping, angular diversity, phase angle diversity and/or polarization diversity.Video projectors's system can use any combination or the incompatible minimizing speckle of subgroup that are configured to increase one or more method in Wavelength Grouping, angular diversity, phase angle diversity or polarization diversity or assembly.Video projectors's system can be used and be configured to be destroyed by time average and/or spatial coherence lower the method for coherence or any combination of assembly reduces speckle.
In some embodiments, the method for speckle is reduced or assembly is independent of one another or can independently in video projectors's system implement.Such as, microlens array can be placed in the optical path of light engine, thus increase angle diversity, no matter whether light source comprises the feature that other reduce speckle, in the signal such as coherent source such as modulated by RF.
In some embodiments, the method or the assembly that reduce speckle work to reduce speckle in every way.Such as, as described in more detail, multiple multimode fiber is used to be can be used for by optical transport to the optical path in light engine from light source reducing speckle by increasing phase angle diversity, angle diversity and polarization diversity herein.
Video projectors's system increases Wavelength Grouping by the spectral bandwidth increasing coherent source.Video projectors's system is by providing the coherent source with similar but different wavelength to increase Wavelength Grouping.Video projectors's system increases Wavelength Grouping by the signal injection coherent source modulated by RF to expand the spectrum launched.Anyly can combinationally use these in the video projectors's system announced in this article and increase assemblies of Wavelength Grouping or any assembly of method or method.
Video projectors's system increases angular diversity, because the light exiting the optical fiber cable of physical separation will enter optical path with various angle by the optical fiber connected between light source engine and the optical path of light engine.Video projectors's system increases angular diversity by the orientation changing coherent source.Video projectors's system increases angular diversity by the optical modulator in the optical path of light engine.Video projectors's system increases angular diversity by using optical element (such as multi lens array (such as, microlens array and/or two-sided convex lens arra), disperser, deformable mirror, mobile refracting element and/or integrator).Video projectors's system increases angular diversity by using the coating on optical element.Assembly or the method for these increase angular diversity any can use with any being combined in video projectors disclosed herein system.
Light is transferred to the optical path of light engine to increase phase angle diversity by using optical fiber cable by video projectors's system from photo engine, phase angle diversity is increased by the multiple internal reflection of light by optical fiber.Video projectors's system can increase phase angle diversity by being undertaken by suitable optical module the time dependent phase shift of coherent source.Video projectors's system increases phase angle diversity by using the multiple emitter source in photo engine, and wherein, multiple emitter source does not correct and/or non coherent relevant.Assembly or the method for these increase phase angle diversity any can use with any being combined in video projectors disclosed herein system.
Video projectors's system by the emitter source in photo engine orientation and/or machinery rotate increase polarization diversity.Video projectors's system increases polarization diversity by using the one or more optical fiber cables (such as, multimode fiber) not being configured to the polarisation of light being maintained by it.Assembly or the method for these increase polarization diversities any can use with any being combined in video projectors disclosed herein system.
In some embodiments, video projectors's system is by using the light source with the assembly source of relative to each other incoherent light to reduce speckle.
conclusion
By reference to the accompanying drawings execution mode is described.It is to be understood, however, that accompanying drawing is also drawn not in scale.Distance, angle etc. only make illustrative and not necessarily have accurate relation with the actual size of shown device and layout.In addition, above-mentioned execution mode is with in detail to making those of ordinary skill in the art manufacture and using the level of device as herein described, system etc. to be described.Can much change.Assembly, element and/or step can carry out changing, add, remove or resetting.Although carried out clear and definite description to some execution modes, based on the disclosure, other execution modes will become apparent to those of ordinary skill in the art.
Conditional statement used herein, such as, especially " can (can) ", " can (could) ", " may (might) ", " can (may) ", " such as (e.g.) " etc., unless special provision is other implication or does other understanding in use within a context, be generally used for passing on the following meaning: some execution modes comprise some features, element and/or state, and other execution mode does not comprise these features, element and/or state.Therefore, this conditional statement is usually not used in and means that characteristics of needs, element and/or state or one or more execution mode comprise for determining whether these features, element and/or regulation are included the logic (being with or without author's input or prompting) that maybe will be performed in any particular implementation one or more execution mode necessarily by any way.Term " comprises (comprising) ", " comprising (including) ", " having (having) " etc. are synonym, use with comprising with open, and do not get rid of additional element, feature, action, operation etc.And, the implication (instead of with its exclusiveness implication) of term " or (or) " inclusive together uses, to make when for such as Connection Element list, term " or (or) " represents one, some or all elements in list.Connect language, such as phrase " in X, Y and Z at least one ", unless within a context in use special provision for other implication or do other and understand, be generally used for passing on the following meaning: project, term etc. can be X, Y or Z.Therefore, this connection language is usually not used in and means that some execution modes need at least one X, at least one Y and at least one Z is each and exist.
Can be performed with different sequence according to the more any one behaviors in execution mode, method as herein described, event or function, can be increased, merge or ignore simultaneously (such as, the behavior of not all description and event are all that putting into practice of the method is necessary).In addition, in some embodiments, behavior, event can perform simultaneously, such as, by multiple threads, interrupt processing or multiprocessor or processor core, instead of sequentially perform.In some embodiments, algorithm disclosed herein can be implemented as in the routine be stored in memory device.In addition, processor can be configured to perform these routines.In some embodiments, self-defining circuit can be used.
Electronic hardware, computer software or the combination of the two is may be implemented as in conjunction with the various illustrative logical blocks of execution mode disclosed herein, module, circuit and algorithm steps.In order to clearly describe the interchangeability of hardware and software, usually according to the function of various schematic part, square frame, module, circuit and step, they are described above.Limiting according to application-specific and the design be applied on total system, is hardware or software by this Function implementation.For each application-specific, described function can be implemented in many ways, but this enforcement determines should not be interpreted as causing deviating from the scope of the present disclosure.
Other programmable logic device of function as herein described, discrete gate circuit or transistor-transistor logic circuit, discrete hardware components or its combination in any can be performed by general processor, digital signal processor (DSP), application-specific IC (ASIC), field programmable gate array (FPGA) or be designed in conjunction with the various illustrative logical blocks of execution mode disclosed herein, module, circuit and algorithm steps implement or perform.General processor can be microprocessor, but alternatively, processor can be any conventional processors, controller, microcontroller or state machine.Processor can also be implemented as the combination of calculation element, such as, and the combination of DSP and microprocessor, multi-microprocessor, one or more microprocessor with DSP core or other this configuration any.
The method described in conjunction with execution mode disclosed herein and the square frame of algorithm can directly realize in hardware, the software module performed by processor or the combination of the two.Software module can reside in the computer-readable recording medium of known other form any of RAM memory, flash memory, ROM memory, eprom memory, eeprom memory, register, hard disk, removable hard disk or prior art.Exemplary storage medium is attached to processor, thus this processor can to storage medium reading writing information.Alternatively, storage medium can be integrated into processor.Processor and storage medium may reside in ASIC.ASIC may reside in user terminal.Alternatively, processor and storage medium can be used as discrete assembly and are present in user terminal.
Although detailed description above illustrates, describes and points out novel features when being applied to various execution mode, but should understand, when not deviating from spirit of the present invention, can various omission, replacement be carried out to the form of shown device and algorithm and details and change.Some features it should be understood that some execution modes of invention as herein described can be showed by tool not provide the form of whole characteristic sum benefit as herein described, because can use independent of other features or realize.Scopes of invention more disclosed herein are indicated by claims, instead of are represented by description above.Fall into all changes in the equivalent meaning of claim and scope will be included in their scope.

Claims (128)

1. a video projectors, comprising:
Optical path, be configured to receive the digital of digital video data from video processing engine, and receive the light produced by light source, described video processing engine is configured to provide digital of digital video data, described light source provides the light of at least two kinds of colors, and described optical path comprises:
Modulation element, is configured to modulate incidence light thereon; And
Scanning system, is configured to be scanned described modulation element as follows by the light from least two kinds of different colours: often kind of color is all incident in the different piece of described modulation element with any one in other colors at concrete time point place.
2. video projectors according to claim 1, wherein, described light source provides the light of at least three kinds of colors.
3. video projectors according to claim 2, wherein, described scanning system comprises:
One group of scanning element, comprises the independent scanning element of the light for often kind of color in the light of described three kinds of colors, and each scanning element is configured to mobile to guide the light of respective color to cross over described modulation element,
Wherein, scanning element is arranged to and makes to there is angular deflection to each other, and described angular deflection makes that the light that distributes from each described scanning element is that be projected to described modulation element at concrete time point, different from the part that the light distributed from other scanning elements projects part.
4. video projectors according to claim 3, wherein, each in described scanning element comprises rotating element, and wherein, the rotation of described rotating element makes the light distributed from described rotating element scan described modulation element.
5. video projectors according to claim 4, wherein, described rotating element comprises hexagonal refracting element.
6. video projectors according to claim 3, wherein, at concrete time point place, described scanning system penetrates the first band of described modulation element by the illumination of the first color, penetrated the second band of described modulation element by the illumination of the second color, and penetrated the 3rd band of described modulation element by the illumination of the 3rd color.
7. video projectors according to claim 6, wherein, at concrete time point place, described scanning system do not irradiate described modulation element, part between irradiated band.
8. the video projectors according to any one in claim 1 to 7, wherein, described scanning system is configured to provide substantially unglazed gap between the region irradiated on described modulation element.
9. the video projectors according to any one in claim 1 to 8, wherein, described light source comprises multiple laser.
10. the video projectors according to any one in claim 1 to 8, wherein, described light source comprises multiple light-emitting diode.
11. video projectors according to any one in claim 1 to 10, also comprise described light source.
12. video projectors according to any one in claim 1 to 11, also comprise described video processing engine.
The method of 13. 1 kinds of light modulated in video projectors's system, described method comprises:
The light of at least two kinds of colors is received from light source;
Receive digital of digital video data from video processing engine, described digital of digital video data has source resolution and source frame rate;
The light received from described light source is guided to modulation element along optical path;
According to received digital of digital video data, the light be incident on described modulation element is modulated; And
As follows described modulation element is scanned by the light from least two kinds of different colours: often kind of color is all incident in the different piece of described modulation element at concrete time point place.
14. methods according to claim 13, wherein, at concrete time point place, are incident between often kind of color on described modulation element and there is substantially unglazed gap.
15. according to claim 13 to the method described in any one in 14, and wherein, scan light comprises using and rotates refracting element refract light.
16. methods according to claim 15, wherein, described rotation refracting element comprises hexagonal refracting element.
17. according to claim 13 to the method described in any one in 16, also comprises and guides light from the first polarization of shades of colour along described optical path, and guide the light from the second cross-polarization of shades of colour along the second optical path.
18. methods according to claim 17, also comprise use second modulation element and modulate the light guided along described second optical path, wherein, the light with described second cross-polarization is incident on described second modulation element.
19. methods according to claim 18, also comprise and being scanned described second modulation element as follows by the light from described second optical path: at concrete time point place, often kind of color is all incident in the different piece of described second modulation element.
20. methods according to claim 18, also comprise and the modulated light from described optical path and the modulated light from described second optical path being combined; And the modulated light of combination is projected on display screen.
21. methods according to claim 20, wherein, the modulated light of described combination is formed with relief image on described display screen.
22. 1 kinds of modular video projector system, comprising:
Photo engine module, comprises at least one light source; And
Optical engine module, is contained in independent encapsulation relative to described photo engine module,
Wherein, described optical engine module is configured to:
The video data provided by Video processing electronic equipment is provided;
The light provided by described photo engine module is provided;
Based on the video data provided by described Video processing electronic equipment, the light provided by described photo engine module is modulated; And
Modulated light is projected.
23. modular video projector system according to claim 22, wherein, described photo engine module provides laser.
24. modular video projector system according to claim 23, wherein, described optical engine module and described photo engine module link together via at least one optical cable.
25. modular video projector system according to any one of claim 22 to 24, also at least comprise the second photo engine module being connected to described optical engine module.
26. modular video projector system according to any one of claim 22 to 25, wherein, described optical engine module is also configured to:
The light provided by described second photo engine module is provided;
Based on the video data provided by described Video processing electronic equipment, the light provided by described photo engine module is modulated; And
Modulated light is projected.
27. modular video projector system according to claim 26, wherein, described first photo engine module and described second photo engine module provide laser.
28. modular video projector system according to claim 27, wherein, described first photo engine module and described second photo engine module are connected to described optical engine module via at least one optical cable.
29. modular video projector system according to any one of claim 22 to 28, wherein, described optical engine module be configured to nearly at least three independently photo engine module work simultaneously.
30. modular video projector system according to any one of claim 22 to 28, wherein, described optical engine module be configured to nearly at least 4 independently photo engine module work simultaneously.
31. modular video projector system according to any one of claim 22 to 28, wherein, described optical engine module be configured to nearly at least 5 independently photo engine module work simultaneously.
32. modular video projector system according to any one of claim 22 to 28, wherein, described optical engine module be configured to alternatively with 1 to 5 independently photo engine module work simultaneously.
33. modular video systems according to any one of claim 22 to 32, wherein, described optical engine module is also configured to:
Based on the video data provided by described Video processing electronic equipment, the light received from described photo engine module is modulated;
Reduce receive the size of pixel; And
The undersized pixel that subtracts in output bounds pixel is moved at least two positions, wherein, with the frame rate of described source video at least twice speed by described subtract undersized pixel move to described at least two positions.
34. modular video projector system according to claim 33, wherein, wherein, subtract undersized pixel with the speed of the frame rate at least 4 times of described source video move at least 4 positions by described.
35. modular video projector system according to any one of claim 22 to 34, wherein, described light source comprises multiple laser.
36. modular video projector system according to any one of claim 22 to 35, wherein, the light provided by described photo engine module comprises at least three kinds of colors, wherein, described light engine is configured to and crosses over the surface of at least one modulation element is the independent band of often kind of color scanning in three kinds of colors.
, wherein, between described band, there is substantially unglazed gap in 37. modular video projector system according to claim 36.
38. modular video projector system according to any one of claim 36 to 37, wherein, described light engine comprises the rotation refracting element performing described scanning.
39. modular video projector system according to any one of claim 22 to 38, also comprise video processing module, described video processing module comprises described Video processing electronic equipment, and has the independent encapsulation different from least described optical engine module.
40. according to modular video projector system according to claim 39, and wherein, described video processing module has the independent encapsulation all different with described both photo engine modules from described optical engine module.
41. 1 kinds of laser projector systems, comprising:
Photo engine module, comprises the multiple lasers being configured to provide the light of multiple color; And
Video Output Modules, is configured to the light receiving described multiple color on a fiber-optic cable, and uses at least one LCoS modulation panel to modulate received light, thus provides the output video be projected.
42. laser projector systems according to claim 41, wherein, described Video Output Modules uses at least two LCoS modulation panel to modulate received light, thus the output video be projected described in providing.
43. 1 kinds of projector system, comprising:
Processing system for video, is configured to produce the modulation signal corresponding with incoming video signal; And
Projector output module, is configured to receive described modulation signal, and modulates to produce output display to the light from multiple light source,
Wherein, described projector output module is configured to produce the output display with the effective resolution at least about twice being equivalent to described incoming video signal.
44. 1 kinds of projector system, comprising:
Processing system for video, is configured to produce the modulation signal corresponding with incoming video signal; And
Projector output module, be configured to receive described modulation signal, and use at least one optical modulation element with original pixels resolution to produce the output video be projected, wherein, effective output resolution ratio of described output video be the original pixels resolution of described optical modulation element at least about twice.
45. projector system according to claim 44, wherein, described effective output resolution ratio be described original pixels resolution at least about 4 times.
46. projector system according to any one of claim 44 to 45, wherein, the frame rate of described incoming video signal is about 30Hz, and the frame rate of described output video is at least about 60Hz.
47. projector system according to any one of claim 44 to 46, wherein, described original resolution is at least about 1080 vertical row, and described effective output resolution ratio is at least about 4320 vertical row.
48. 1 kinds of video projectors's systems, comprising:
Optical path, be configured to receive digital of digital video data from video processing engine, and receive light from light source, described optical path is configured to:
Use modulation element to modulate received light according to received described digital of digital video data, modulated light comprises multiple pixel;
For each modulated pixel:
Modulated sub-pixel is produced by the size reducing described modulated pixel; And
In geometrical pattern, described sub-pixel is moved in the region that the size by described modulated pixel limits; And
Described modulated sub-pixel is projected as output video.
49. video projectors according to claim 48 systems, wherein, described pattern carries out repetition with sub-pixel frequency.
50. video projectors according to claim 49 systems, wherein, described sub-pixel frequency is greater than the frame rate of described digital of digital video data.
51. video projectors's systems according to any one of claim 48 to 50, wherein, described optical path comprises multiple optical element, and described multiple optical element is configured to the size reducing described modulated pixel.
52. video projectors according to claim 51 systems, wherein, described multiple optical element comprises microlens array.
53. video projectors's systems according to any one of claim 48 to 52, wherein, described optical path comprises refracting element, and described refracting element is configured to mobile described sub-pixel in described geometrical pattern.
54. video projectors's systems according to any one of claim 48 to 53, wherein, described light source provides laser.
55. video projectors's systems according to any one of claim 48 to 54, wherein, described light source provides the light produced by multiple light-emitting diode.
56. video projectors's systems according to any one of claim 48 to 55, wherein, described modulation element comprises LCoS panel.
57. video projectors's systems according to any one of claim 48 to 56, wherein, described optical path comprises at least two modulation panel.
58. video projectors according to claim 57 systems, wherein, from the light of first described modulation panel projection have from from the polarization that the light projected is different of second in described modulation panel.
59. video projectors's systems according to any one of claim 48 to 58, wherein, the horizontal resolution of the digital of digital video data received is at least about 3840 horizontal pixels.
60. video projectors's systems according to any one of claim 48 to 59, wherein, the modulated sub-pixel of projection produces the output video be projected, wherein, the effective resolution of the described output video be projected be the original resolution of modulation element at least about twice, wherein, the light that described modulation element is configured to receiving from described photo engine module is modulated.
61. video projectors according to claim 60 systems, wherein, described effective resolution be the original resolution of described modulation element at least about 4 times.
62. 1 kinds of video projectors's systems, comprising:
Optical path, be configured to receive digital of digital video data from video processing engine, and receive light from light source, described optical path comprises:
Modulation element, be configured to modulate according to the light of received digital of digital video data to the reception be incident on described modulation element, described modulation element comprises multiple pixel, and described multiple pixel is configured to provide multiple modulated pixel; And
Sub-pixel generator, comprises optical element, and described optical element is configured to each modulated pixel in geometrical pattern in mobile described multiple modulated pixel.
63. video projectors according to claim 62 systems, wherein, the optical element of described sub-pixel generator comprises removable refracting element.
64. video projectors's systems according to any one of claim 62 to 63, wherein, described sub-pixel generator also comprises multiple lens, and described multiple lens are configured to the size of each modulated pixel reduced in described multiple modulated pixel.
65. video projectors according to claim 64 systems, wherein, the size of described geometrical pattern is limited by the size of modulated pixel.
66. video projectors's systems according to any one of claim 62 to 65, also comprise described light source.
67. video projectors according to claim 66 systems, wherein, described light source provides the light from multiple laser.
68. video projectors's systems according to any one of claim 62 to 67, wherein, described sub-pixel generator also comprises the mechanical organ being configured to mobile described optical element.
69. video projectors's systems according to any one of claim 62 to 68, also comprise scanning system, described scanning system is configured to be scanned described modulation element by the light from described light source.
70. video projectors's systems according to any one of claim 62 to 69, wherein, described video projectors system also comprises projector lens, and it is output video that described projector lens are configured to described modulated pixel projection.
71. 1 kinds for using the method for video projectors's system display of video streams, described method comprises:
Digital of digital video data is received from video processing engine;
Light is received from light source;
Use modulation element to modulate received light according to received digital of digital video data, modulated light comprises multiple pixel; And
Pixel for each modulation:
Modulated sub-pixel is produced by the size reducing modulated pixel; And
In geometrical pattern, described modulated sub-pixel is moved in the region that the size by described modulated pixel limits.
72. according to the method described in claim 71, and wherein, the size reducing described modulated pixel comprises the image using microlens array to produce described modulated pixel, and wherein, the size of modulated pixel is at least about 2 with the ratio of the size of modulated sub-pixel.
73. methods according to any one of claim 71 to 72, wherein, mobile described modulated sub-pixel comprises mobile refracting element, and described modulated sub-pixel is moved in described geometrical pattern.
74. according to the method described in claim 73, and wherein, mobile described refracting element comprises use mechanical organ to adjust the orientation of described refracting element.
75. methods according to any one of claim 71 to 74, wherein, described geometrical pattern carries out repetition with pattern frequency.
76. according to the method described in claim 75, and wherein, described pattern frequency is greater than the frame rate of described digital of digital video data.
77. methods according to any one of claim 71 to 76, also comprise and described modulated sub-pixel are projected as output video.
78. 1 kinds of modular video projector system, comprising:
Photo engine module, comprises at least one light source;
Video processing module; And
Optical engine module,
Wherein, described photo engine module, described video processing module and described optical engine module comprise standalone module, described standalone module can be connected to each other releasedly directly or indirectly at least one assembled configuration, and wherein, in at least one assembled configuration described, described optical engine module is configured to:
The video data provided by described video processing module is provided;
The light provided by described photo engine module is provided;
Based on the video data provided by described video processing module, the light provided by described photo engine module is modulated; And
Modulated light is projected.
79. according to the modular video projector system described in claim 78, and wherein, described photo engine module provides laser.
80. modular video projector system according to any one of claim 78 to 79, also comprise the second photo engine module that can be connected to video projectors's system of assembling directly or indirectly releasedly.
81. modular video projector system according to Claim 8 described in 0, wherein, the first photo engine module and the second photo engine module provide laser.
82. modular video projector system according to any one of claim 78 to 81, wherein, described optical engine module is also configured to:
Based on the video data provided by described video processing module, the light received from described photo engine module is modulated;
Reduce receive the size of pixel; And
The undersized pixel that subtracts in output bounds pixel is moved at least two positions, wherein, with the frame rate of described source video at least the speed of twice will subtract undersized pixel and move at least two positions.
83. modular video projector system according to any one of claim 78 to 82, wherein, described light source comprises multiple laser.
84. modular video projector system according to any one of claim 78 to 83, wherein, the light provided by described photo engine module comprises at least three kinds of colors, wherein, described light engine is configured to cross over the surface of at least one modulation element is the independent band of often kind of color scanning in three kinds of colors.
, wherein, between described band, there is substantially unglazed gap in 85. modular video projector system according to Claim 8 described in 4.
86. modular video projector system according to Claim 8 according to any one of 4 to 85, wherein, described light engine comprises the rotation refracting element performing described scanning.
87. 1 kinds of laser projector systems, comprising:
Photo engine module, comprises the multiple lasers being configured to provide the light of multiple color; And
Video Output Modules, is configured to the light receiving multiple color on a fiber-optic cable, and uses at least two LCoS modulation panel to modulate received light, thus provides output video to show.
88. 1 kinds of projector system, comprising:
Processing system for video, is configured to produce the modulation signal corresponding with incoming video signal; And
Projector output module, is configured to receive described modulation signal, and modulates to produce output display to the light from multiple light source,
Wherein, described projector output module is configured to produce have and is equivalent to the output of described incoming video signal at least about the effective resolution of twice.
89. 1 kinds of projector system, comprising:
Processing system for video, is configured to produce the modulation signal corresponding with the incoming video signal with original resolution; And
Projector output module, is configured to receive described modulation signal, and produces the output video at least about twice that output resolution ratio is described original resolution.
90. projector system according to Claim 8 described in 9, wherein, the frame rate of input video is about 30Hz, and the frame rate of described output video is at least about 60Hz.
91. projector system according to Claim 8 according to any one of 9 to 90, wherein, described original resolution is at least about 1080 vertical row, and output resolution ratio is at least about 4320 vertical row.
92. 1 kinds of projector system, comprising:
Integrator, receives and launches light in the band of basic rectangle;
At least one modulation panel, comprises pel array, and is configured to light modulated, thus produces the array of modulated pixel; And
Sub-pixel generator, comprises microlens array and removable refracting element,
Wherein, described microlens array is configured to the array receiving described modulated pixel, and reduces the size of each modulated pixel in described array,
Wherein, described refracting element is configured to movement and subtracts undersized pixel, and
Wherein, the combination of described sub-pixel generator and described modulation panel produces the output video be projected.
93. according to the projector system described in claim 92, wherein, described in the resolution of output video that is projected be the resolution of described modulation panel at least about twice.
94. according to the projector system described in claim 92, wherein, described in the resolution of output video that is projected be the resolution of described modulation panel at least about 4 times.
95. 1 kinds of projector system, comprising:
Integrator, receives and launches light in the band of basic rectangle, and the width of described band is along first direction, and the height shorter than described width is along second direction;
Scanning system, is configured to be scanned along described second direction relative to the band of described rectangle by the light from described integrator;
Polarized systems, is configured to receive the light from described scanning system, and makes received light polarization;
At least two modulation panel, are configured to receive the light be polarized, and modulate the described light be polarized, and wherein, the first modulation panel modulation has the light of the first polarization, and the second modulation panel modulation has the light of the second orthogonal polarization; And
Optical system, is configured to the modulated light from described first modulation panel and the modulated light from the second modulation panel to carry out combining to provide relief video frequency output.
96. 1 kinds of methods for using sub-pixel generator to improve the resolution of laser projector system, described method comprises:
Receive modulated light, described light is modulated according to source video;
Guide on lens arra by modulated light, wherein, each modulated pixel is directed on the lens of described lens arra;
Described lens are used to reduce the size of the pixel received; And
Use refracting element, with rapid succession, the undersized pixel that subtracts in output bounds pixel is moved at least two positions,
With the frame rate of source video at least about twice speed by described subtract undersized pixel move to described at least two positions.
97. 1 kinds of video projectors's systems, comprising:
Light source;
Video processing engine, is configured to provide the digital of digital video data with first resolution and the first frame rate; And
Optical path, is configured to:
Receive the digital of digital video data from processing system for video;
Receive the light produced by described light source,
Use modulation element to modulate received light, modulated light comprises multiple pixel; And
Single pixel in modulated pixel:
Modulated sub-pixel is produced by the size reducing described modulated pixel; And
Described modulated sub-pixel is moved at least two diverse locations; And
Described modulated sub-pixel is projected as output video by each position in described at least two positions.
98. according to the video projectors's system described in claim 97, wherein, and mobile described sub-pixel in the region that the size by described modulated pixel limits.
99. video projectors's systems according to any one of claim 97 to 98, wherein, move described sub-pixel according to predetermined geometrical pattern.
100. video projectors's systems according to any one of claim 97 to 99, wherein, described at least two positions comprise at least 4 different positions.
101. video projectors's systems according to any one of claim 97 to 100, wherein, described light source provides laser.
102. video projectors's systems according to any one of claim 97 to 101, wherein, described light source provides the light produced by multiple light-emitting diode.
103. video projectors's systems according to any one of claim 97 to 102, wherein, described optical path comprises at least one modulation panel being configured to modulate the light received from photo engine module.
104. according to the video projectors's system described in claim 103, and wherein, at least one modulation panel described comprises liquid crystal over silicon (LCoS) plate.
105. video projectors's systems according to any one of claim 103 to 104, wherein, described optical path comprises at least two modulation panel.
106. according to the video projectors's system described in claim 105, wherein, from the light shift of the projection of second of light spatially always in automodulation panel of the projection of first in modulation panel.
107. video projectors's systems according to any one of claim 97 to 106, wherein, described optical path comprises microlens array, and microlens array is configured to receive modulated pixel and produces modulated sub-pixel.
108. video projectors's systems according to any one of claim 97 to 107, wherein, described optical path comprises removable refracting element, and described removable refracting element is configured to receive modulated sub-pixel, and mobile described modulated sub-pixel.
109. video projectors's systems according to any one of claim 97 to 108, wherein, the level of significance resolution of described output video is at least about 3840 horizontal pixels.
110. video projectors's systems according to any one of claim 97 to 109, wherein, the level of significance resolution of described output video is at least about 4000 horizontal pixels.
111. video projectors's systems according to any one of claim 97 to 110, wherein, the modulated sub-pixel of projection produces the output video of projection, the effective resolution of described output video be the original resolution of modulation element at least about twice, the light that described modulation element is configured to receiving from described photo engine module is modulated.
112. according to the video projectors's system described in claim 111, wherein, described effective resolution be the original resolution of modulation element at least about 4 times.
113. one kinds of video projectors's systems, comprising:
Light source;
Video processing engine, is configured to provide the digital of digital video data had; And
Optical path, be configured to receive the digital of digital video data from processing system for video, and receive the light produced by described light source, described optical path comprises:
At least two modulation panel, be configured to modulate received light based on received digital of digital video data, modulated light comprises multiple pixel; And
Optics, is configured to reflect the light by described at least two modulation elements modulation, and exports the modulated light for being projected to display surface.
Wherein, described optical path is also configured such that the light be projected modulated by the first modulation element in described at least two modulation panel is spatially with respect to the light shift be projected of the second modulation element modulation in described at least two modulation elements.
114. according to the video projectors's system described in claim 113, and wherein, the effective resolution of the light be projected is that at least twice of the original resolution of single modulation panel is high.
115. one kinds of video projectors, comprising:
Light source, provides the light of at least two kinds of colors;
Video processing engine, is configured to provide the digital of digital video data with source resolution and source frame rate;
Optical path, be configured to receive the digital of digital video data from described video processing engine, and receive the light produced by described light source, described optical path comprises:
Modulation panel, is configured to modulate incidence light thereon; And
Scanning system, is configured to be scanned described modulation panel as follows by the light of different colours: often kind of color is all incident in the different piece of described modulation panel with any one in other colors at concrete time point place.
116. according to the video projectors described in claim 115, and wherein, described light source provides the light of at least three kinds of colors.
117. according to the video projectors described in claim 116, and wherein, described scanning system comprises:
A set of scanning element, comprises the independent scanning element of the light for often kind of color in the light of described three kinds of colors, and each scanning element is configured to mobile to guide the light of respective color to cross over described modulation panel,
Wherein, scanning element is arranged to and makes to there is angular deflection to each other, and described angular deflection makes that the light that distributes from each described scanning element is that be projected to described modulation panel at concrete time point, different from the part that the light distributed from other scanning elements projects part.
118. according to the video projectors described in claim 117, and wherein, each in described scanning element comprises rotating element, and wherein, the rotation of described rotating element makes the light distributed from described rotating element scan described modulation panel.
119. according to the video projectors described in claim 118, and wherein, described rotating element comprises hexagonal refracting element.
120. video projectors according to any one of claim 117 to 119, wherein, at concrete time point place, described scanning system penetrates the first band of described modulation panel by the illumination of the first color, penetrated the second band of described modulation panel by the illumination of the second color, and penetrated the 3rd band of described modulation panel by the illumination of the 3rd color.
121. according to the video projectors described in claim 120, wherein, at concrete time point place, described scanning system do not irradiate described modulation panel, part between irradiated band.
122. video projectors according to any one of claim 115 to 121, wherein, described scanning system is configured to provide substantially unglazed gap between the region irradiated in described modulation panel.
123. video projectors according to any one of claim 115 to 122, wherein, described light source comprises multiple laser.
124. video projectors according to any one of claim 115 to 122, wherein, described light source comprises multiple light-emitting diode.
125. one kinds of video projectors, comprising:
Modulation element, the signal be configured in response to deriving from digital of digital video data is modulated the light be incident on modulation element, described light produced by light source and with there is at least the first light of the first color and to have the second light of the second color corresponding; And
Scanner, be positioned at described modulation element in optical path before, described scanner comprises:
First optical element, is configured to guide first of described first light the band pass therethrough and cross over described modulation element at least partially; And
Second optical element, be configured to guide second of described second light the band pass therethrough and cross over a part for described modulation element, wherein, when described first band and described second Tape movement and when crossing over described modulation element a part of, described first band and described second is with maintenance to be substantially separated.
126. according to the video projectors described in claim 125, and wherein, described first optical element and described second optical element move, to make the part of first of light the band and the described modulation element of the second directed leap of band.
127. according to the video projectors described in claim 126, and wherein, the geometric profile of described first optical element is similar to the geometric profile of described second optical element substantially.
128. according to the video projectors described in claim 127, wherein, described first optical element and described second optical element relative to each other offset rotatably, and rotate the part making first of light the band and the described modulation element of the second directed leap of band simultaneously.
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US20160029001A1 (en) 2016-01-28
JP6275116B2 (en) 2018-02-07
WO2013155319A1 (en) 2013-10-17
CN104272728B (en) 2017-12-01
US8872985B2 (en) 2014-10-28
EP2842330B1 (en) 2018-08-29
ES2688819T3 (en) 2018-11-07
US20160366381A1 (en) 2016-12-15
US9854214B2 (en) 2017-12-26

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